US20120045412A1 - Cycloalkylidene and heterocycloalkylidene inhibitor compounds - Google Patents

Cycloalkylidene and heterocycloalkylidene inhibitor compounds Download PDF

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US20120045412A1
US20120045412A1 US13/284,559 US201113284559A US2012045412A1 US 20120045412 A1 US20120045412 A1 US 20120045412A1 US 201113284559 A US201113284559 A US 201113284559A US 2012045412 A1 US2012045412 A1 US 2012045412A1
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alkyl
cyclopropyl
benzamide
pyrimidin
pyridin
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Lawrence S. Melvin, Jr.
Michael Graupe
Chandrasekar Venkataramani
Juan A. Guerrero
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Gilead Sciences Inc
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    • C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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    • C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
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    • C07D513/04—Ortho-condensed systems

Definitions

  • the present invention generally relates to a compound having enzyme inhibitory activity, pharmaceutical compositions comprising the compound, and methods useful for treating diseases.
  • Histones are protein components making up chromatin in association with DNA. Histones are subject to covalent modifications of various enzymes such as, for example, histone deacetylase (HDAC), histone methyltransferase (HMT) and histone acetyltransferase (HAT). Covalent modifications of core histones influence protein-protein interaction and protein access to DNA.
  • HDAC histone deacetylase
  • HMT histone methyltransferase
  • HAT histone acetyltransferase
  • HDACs catalyze deacetylation of lysine residues on histones and other proteins. It is known that low levels of histone-acetylation are associated with repression of gene expression. Therefore, abnormal HDAC activities could destroy the delicate balance in cell regulation.
  • the HDACs belong to four structurally and functionally different phylogenetic classes: class I (HDAC-1, -2, -3, and -8) compounds are closely related to yeast RPD3; class IIa (HDAC-4, -5, -7, and -9) and class IIb (HDAC-6 and -10) share domains with yeast HDAC-1; class IV, recently described (comprising HDAC-11), exhibits properties of both class I and class II HDACs.
  • HDACs are zinc dependent proteases.
  • Class III HDACs have been identified on the basis of sequence similarity with Sir2, a yeast transcription repressor, and require the cofactor NAD + for their deacetylase function. See, for example, Marielle Paris et al., Histone Deacetylase Inhibitors: From Bench to Clinic , J OURNAL OF M EDICINAL C HEMISTRY 51(11): 3330-3330 (2008).
  • HDAC inhibitor can provide therapeutic benefits to a broad range of patients. Due to the therapeutic significance, various types of HDAC inhibitors have been developed to date. See, for example, Moradei et al., Histone Deacetylase Inhibitors: Latest Developments, Trends, and Prospects , C URR . M ED . C HEM .: A NTI -C ANCER A GENTS 5(5):529-560 (2005).
  • WO 2005/092899 mentions a series of compounds useful for inhibiting HDAC enzymatic activity where the compounds are amino or hydroxyl substituted aniline derivatives attached to various cyclic groups.
  • a compound having HDAC inhibitory activity in various embodiments, a composition comprising the compound, and a method useful to treat diseases arising from abnormal cell proliferation or differentiation are provided.
  • the compound is of Formula (I) or a pharmaceutically acceptable salt thereof:
  • compositions comprise an HDAC-inhibitory effective amount of one or more compounds described herein and a pharmaceutically-acceptable carrier.
  • Methods of inhibiting or treating diseases arising from abnormal cell proliferation and differentiation comprise administering to a subject a therapeutically effective amount of one or more compounds described herein.
  • Other methods involve co-therapies by administering one or more of the compounds together with other anti-cancer agents.
  • alkenyl refers to a straight or branched hydrocarbyl group with at least one site of unsaturation, i.e. a carbon-carbon, sp 2 double bond. In an embodiment, alkenyl has from 2 to 12 carbon atoms. In some embodiments, alkenyl is a C 2 -C 10 alkenyl group or a C 2 -C 6 alkenyl group. Examples of alkenyl group include, but are not limited to, ethylene or vinyl (—CH ⁇ CH 2 ), allyl (—CH 2 CH ⁇ CH 2 ), cyclopentenyl (—C 5 H 7 ), and 5-hexenyl (—CH 2 CH 2 CH 2 CH 2 CH ⁇ CH 2 ).
  • Alkanoyl is the group RC(O)—; “alkanoyloxy” is RC(O)O—; and “alkanoylamino” is RC(O)NR′—; where R is an alkyl group as defined herein, and R′ is H or alkyl. In various embodiments, R is a C 1 -C 10 alkyl group or a C 1 -C 6 alkyl group.
  • Alkoxy is RO— where R is alkyl.
  • alkoxy groups include methoxy, ethoxy and propoxy.
  • Alkoxyalkyl refers to an alkyl moiety substituted with an alkoxy group.
  • alkoxyalkyl groups include methoxymethyl, methoxyethyl, methoxypropyl and ethoxyethyl.
  • Alkoxycarbonyl is ROC(O)—, where R is an alkyl group as defined herein. In various embodiments, R is a C 1 -C 10 alkyl group or a C 1 -C 6 alkyl group.
  • Alkyl refers to a straight or branched chain saturated hydrocarbyl group. In an embodiment, alkyl has from 1 to 12 carbon atoms. In some embodiments, alkyl is a C 1 -C 10 alkyl group or a C 1 -C 6 alkyl group. Examples of alkyl groups include, but are not limited to, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, hexyl, heptyl, octyl, nonyl and decyl.
  • Alkylamino refers to an amino group substituted with one or more alkyl groups.
  • N-(alkyl)amino is RNH— and “N,N-(alkyl) 2 amino” is R 2 N—, where the R groups are alkyl as defined herein and are the same or different.
  • R is a C 1 -C 10 alkyl group or a C 1 -C 6 alkyl group.
  • alkylamino groups include methylamino, ethylamino, propylamino, butylamino, dimethylamino, diethylamino, and methylethylamno.
  • Alkylaminoalkyl refers to an alkyl moiety substituted with an alkylamino group, wherein alkylamino is as defined herein.
  • alkylaminoakyl groups include methylaminomethyl and ethylaminomethyl.
  • Alkynyl refers to a straight or branched carbon-chain group with at least one site of unsaturation, i.e. a carbon-carbon, sp triple bond. In an embodiment, alkynyl has from 2 to 12 carbon atoms. In some embodiments, alkynyl is a C 2 -C 10 alkynyl group or a C 2 -C 6 alkynyl group. Examples of alkynyl groups include acetylenic (—C ⁇ CH) and propargyl (—CH 2 C ⁇ CH).
  • Aryl refers to a monocyclic, bicyclic or tricyclic carbon ring system of up to 7 atoms in each ring, wherein at least one ring is aromatic. In various embodiments, aryl encompasses a ring system of up to 14 carbons atoms. Aryl includes a carbocyclic aromatic ring fused with a 5- or 6-membered cycloalkyl group. Examples of aryl groups include, but are not limited to, phenyl, naphthyl, tetrahydronaphthyl and indanyl.
  • Aryloxy is RO—, where R is aryl.
  • Arylthio is RS—, where R is aryl.
  • Carbamoyl is the group NH 2 —C(O)—; the nitrogen can be substituted with alkyl groups.
  • N-(alkyl)carbamoyl is RNH—C(O)— and N,N-(alkyl) 2 carbamoyl is R 2 N—C(O)—, where the R groups are alkyl as defined herein and are the same or different.
  • R is a C 1 -C 10 alkyl group or a C 1 -C 6 alkyl group.
  • Cycloalkyl is a hydrocarbyl group containing at least one saturated or partially unsaturated ring structure, and attached via a ring carbon. In various embodiments, it refers to a saturated or a partially unsaturated C 3 -C 12 cyclic moiety, examples of which include cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl, cycloheptyl and cyclooctyl.
  • Cycloalkyloxy is RO—, where R is cycloalkyl.
  • Cycloalkylalkyl refers to an alkyl moiety substituted with a cycloalkyl group, wherein cycloalkyl is as defined herein.
  • Examples of cycloalkylalkyl groups include, but are not limited to, cyclopropylmethyl, cyclobutylmethyl, cyclopentylethyl and cyclohexylmethyl.
  • Cycloalkylidene refers to a divalent group formed from cycloalkane having two substituents on a single carbon of the cycloalkane. It can be represented in illustrative fashion by the following formula,
  • cycloalkylidene is a divalent C 3 -C 12 cyclic moiety. Examples of cycloalkylidene groups include cyclopropylidene, cyclobutylidene, cyclopentylidene and cyclohexylidene.
  • Dialkylamino refers to an RR′N— group where R and R′ are independently alkyl as defined herein.
  • dialkylamino groups include, but are not limited to, dimethylamino, diethylamino, methylethylamino and methylpropylamino.
  • R and R′ are independently a C 1 -C 10 alkyl group or a C 1 -C 6 alkyl group.
  • Dialkylaminoalkyl refers to an alkyl moiety substituted with a dialkylamino group, wherein dialkylamino is as defined herein.
  • dialkylaminoalkyl groups include, but are not limited to, dimethylaminomethyl and diethylaminomethyl.
  • “Feasible” refers to a structure or process that is capable of being accomplished; one that is possible, suitable, or logical.
  • a structure or process is “chemically feasible”, that structure or process is synthetically attainable, chemically stable to the typical ambient conditions and/or contributes to favorable biological properties such as efficacy, bioavailability and minimal toxicity for the intended use.
  • Chemically feasible structures are bound by the rules of electron bonding, whereby bonds can only be formed between atoms that are capable of forming bonds with one another. Likewise, chemically feasible processes can only produce structures that are themselves chemically feasible.
  • Halo refers to chloro (—Cl), bromo (—Br), fluoro (—F) or iodo (—I).
  • Haloalkoxy refers to an alkoxy group substituted with one or more halo groups.
  • haloalkoxy groups include, but are not limited to, —OCF 3 , —OCHF 2 and —OCH 2 F.
  • Haloalkoxyalkyl refers to an alkyl moiety substituted with a haloalkoxy group, wherein haloalkoxy is as defined herein.
  • haloalkoxyalkyl groups include trifluoromethoxymethyl, trifluoroethoxymethyl and trifluoromethoxyethyl.
  • Haloalkyl refers to an alkyl moiety substituted with one or more halo groups. Examples of haloalkyl groups include —CF 3 and —CHF 2 .
  • Heterocyclyl includes heteroaryl and heterocycloalkyl defined below and refers to an unsaturated, saturated, or partially unsaturated heterocyclic group. In various embodiments, it is a monocyclic, bicyclic or tricyclic group of 2 to 14 ring-carbon atoms. In addition to ring-carbon atoms, at least one ring has one or more heteroatoms selected from P, N, O and S. In various embodiments, the heterocyclic group is attached to another moiety through carbon or through a heteroatom, and is optionally substituted on carbon or a heteroatom.
  • heterocyclyl examples include azetidinyl, benzoimidazolyl, benzofuranyl, benzofurazanyl, benzopyrazolyl, benzotriazolyl, benzothiophenyl, benzoxazolyl, carbazolyl, carbolinyl, cinnolinyl, furanyl, imidazolyl, indolinyl, indolyl, indolazinyl, indazolyl, isobenzofuranyl, isoindolyl, isoquinolyl, isothiazolyl, isoxazolyl, naphthpyridinyl, oxadiazolyl, oxazolyl, oxazoline, isoxazoline, oxetanyl, pyranyl, pyrazinyl, pyrazolyl, pyridazinyl, pyridopyridinyl, pyridazinyl, pyridyl,
  • Heterocyclylalkyl is an alkyl group substituted with a heterocyclyl.
  • Heterocyclyloxy is RO—, where R is heterocyclyl.
  • Heterocyclylthio is RS—, where R is heterocyclyl.
  • Heteroaryl is a heterocyclyl where at least one ring is aromatic. In various embodiments, it refers to a monocyclic, bicyclic or tricyclic ring having up to 7 atoms in each ring, wherein at least one ring is aromatic and contains from 1 to 4 heteroatoms in the ring selected from the group consisting of N, O and S,
  • Non-limiting examples of heteroaryl include pyridyl, thienyl, furanyl, pyrimidyl, imidazolyl, pyranyl, pyrazolyl, thiazolyl, thiadiazolyl, isothiazolyl, oxazolyl, isoxazoyl, pyrrolyl, pyridazinyl, pyrazinyl, quinolinyl, isoquinolinyl, benzofuranyl, dibenzofuranyl, dibenzothiophenyl, benzothienyl, indolyl, benzothiazoly
  • heteroaryl can occur via an aromatic ring, or, if heteroaryl is bicyclic or tricyclic and one of the rings is not aromatic or contains no heteroatoms, through a non-aromatic ring or a ring containing no heteroatoms.
  • “Heteroaryl” is also understood to include the N-oxide derivative of any nitrogen containing heteroaryl.
  • Heteroaryloxy is RO—, where R is heteroaryl.
  • Heterocycloalkyl is a heterocyclyl where no rings are aromatic.
  • Heterocycloalkylidene refers to a divalent group formed from a heterocyclyl with two substituents on a single ring carbon. It can be represented in illustrative fashion by the formula
  • Each Q is independently —CH 2 — or a heteroatom selected from —NH—, —O— and —S—, and when Q is methylene(—CH 2 —) or imino (—NH—), Q is optionally substituted with a group R 3 as defined herein.
  • “Hydroxyalkoxy” refers to an alkoxy group substituted with a hydroxyl group (—OH), wherein alkoxy is as defined herein.
  • An example of hydroxyalkoxy is hydroxyethoxy.
  • “Hydroxyalkyl” refers to a linear or branched monovalent C 1 -C 10 hydrocarbon group substituted with at least one hydroxyl group.
  • Examples of hydroxyalkyl groups include, but are not limited to, hydroxymethyl, hydroxyethyl, hydroxypropyl and hydroxybutyl.
  • substituent may be either (1) not substituted or (2) substituted. If a substituent is described as being optionally substituted with up to a particular number of non-hydrogen radicals, that substituent may be either (1) not substituted; or (2) substituted by up to that particular number of non-hydrogen radicals or by up to the maximum number of substitutable positions on the substituent, whichever is less.
  • “Sulphamoyl” is NH 2 —S(O) 2 —; “N-(alkyl)sulphamoyl” is RNH—S(O) 2 —; and “N,N-(alkyl) 2 sulphamoyl” is R 2 N—S(O) 2 —, where the R groups are alkyl as defined herein and are the same or different. In various embodiments, R is a C 1 -C 10 alkyl group or a C 1 -C 6 alkyl group.
  • “Pharmaceutically-acceptable” means suitable for use in pharmaceutical preparations, generally considered as safe for such use, officially approved by a regulatory agency of a national or state government for such use, or being listed in the U.S. Pharmacopoeia or other generally recognized pharmacopoeia for use in animals, and more particularly in humans.
  • “Pharmaceutically-acceptable carrier” refers to a diluent, adjuvant, excipient, carrier, other ingredient, or combination of ingredients that is pharmaceutically-acceptable and with which a compound of the invention is administered.
  • “Pharmaceutically-acceptable salt” refers to a salt that may enhance desired pharmacological activity.
  • Examples of pharmaceutically-acceptable salts include acid addition salts formed with inorganic or organic acids, metal salts and amine salts.
  • Examples of acid addition salts formed with inorganic acids include salts with hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid and phosphoric acid.
  • Examples of acid addition salts formed with organic acids such as acetic acid, propionic acid, hexanoic acid, heptanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, o-(4-hydroxy-benzoyl)-benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, 1,2-ethanedisulfonic acid, 2-hydroxyethane-sulfonic acid, benzenesulfonic acid, p-chlorobenzenesulfonic acid, 2-naphthalenesulfonic acid, p-toluenesulfonic acid (p-TsOH), camphorsulfonic acid, 4-methyl-bicyclo[2.2.2]oct-2-
  • “Therapeutically-effective amount” refers to an amount of a compound that, when administered to a subject for treating a disease, is sufficient to effect treatment for the disease. “Therapeutically effective amount” can vary depending on the compound, the disease and its severity, and the age, the weight, etc. of the subject to be treated.
  • Embraced herein, where applicable, are permissible isomers such as tautomers, racemates, enantiomers, diastereomers, atropisomers, configurational isomers of double bonds (E- and/or Z-), cis- and trans-configurations in ring substitution patterns, and isotopic variants.
  • the invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof:
  • substitution with —NH 2 or —OH on aryl or heteroaryl of R 1 is adjacent to the attachment of the Ar—C(O)—NH— group to the aryl or heteroaryl.
  • R 1 is hydroxyl and the compounds are characterized as hydroxamates. In another embodiment, R 1 is substituted aryl or heteroaryl and the compounds are characterized as arylamides.
  • Ar is phenyl.
  • the Cy 1 and —C(O)NH—R 1 groups are disposed on the phenyl in a 1,4-configuration, where Cy 1 is considered as the 1-position.
  • Ar is thiophene.
  • the Cy 1 and —C(O)NH—R 1 groups are disposed on the thiophene in a 2,5-configuration, where Cy 1 is considered as the 2-position (with the S atom of the thiophene ring taken as the 1-position).
  • Ar is pyridine.
  • the Cy 1 and —C(O)NH—R 1 groups are disposed on the pyridine in a 2,5-configuration, where Cy 1 is considered as the 2-position, or in a 3,6-configuration, where Cy 1 is considered as the 3-position (in all cases, the N atom of the pyridine ring is taken as the 1-position).
  • Ar is thiazole.
  • the Cy 1 and —C(O)NH—R 1 groups are disposed on the thiazole in a 2,4- or 2,5-configuration, where the Cy 1 is considered as the 2-position (with the S atom of the thiazole ring taken as the 1-position).
  • Cy 1 is C 3-7 cycloalkylidene, where the Ar and Cy 2 groups are substituted in a 1,1-configuration on the C 3-7 ring.
  • the ring of cycloalkylidene is optionally substituted with one or more groups R 3 as further defined herein.
  • the ring is completely saturated with H so that the variable n in Formula (I) is zero.
  • Cy 1 is cyclopropylidene, cyclobutylidene, or cyclopentylidene.
  • Cy 1 is a heterocyclic group with 1,1-disubstitution by the Ar and Cy 2 rings.
  • Examples include 5- to 7-membered rings containing at least one heteroatom selected from N, O, and S.
  • Carbon atoms in the 1,1-disubstituted heterocyclic ring are optionally substituted with one or more oxo groups (i.e.,
  • substitutable positions on the ring are optionally substituted with 1 or more groups R 3 .
  • the only substituent R 3 is an oxo group on carbon.
  • all substitutable positions contain H, so that the variable n in Formula (I) is zero.
  • Cy 1 is tetrahydropyran-4,4-diyl (i.e.,
  • the ring Cy 2 is a nitrogen containing heterocyclyl.
  • Cy 2 is a 5-membered or 6-membered heterocyclyl. Examples include pyrrole, imidazole, pyrazole, triazole, tetrazole, thiazole, isothiazole, oxazole, isoxazole, pyridine, dihydropyridine, pyrimidine, pyrazine, pyridazine, and triazines.
  • Cy 2 is a fused bicyclic ring system containing a 5- or 6-membered nitrogen containing heteroaryl ring fused to another ring.
  • Cy 2 is selected from
  • Cy 2 is a heterocyclic group substituted by one or more oxo groups.
  • Non-limiting examples of such Cy 2 include:
  • At least one of the substituents on ring Cy 2 is a cyclic group.
  • the cyclic group R 4 is a 5- or 6-membered ring nitrogen containing heteroaryl, optionally fused.
  • the cyclic group optionally contains one or more substituents R 5 , as further defined herein.
  • A, B and D are independently selected from the group consisting of halo, alkyl, nitro, cyano, hydroxyl, oxo, cycloalkyl, trifluoromethoxy, trifluoromethyl, trifluoroethyl, amino, carboxyl, carbamoyl, mercapto, sulphamoyl, methyl, ethyl, methoxy, ethoxy, acetyl, acetoxy, methylamino, ethylamino, dimethylamino, diethylamino, N-methyl-N-ethylamino, acetylamino, N-methylcarbamoyl, N-ethylcarbamoyl, N,N-dimethylcarbamoyl, N,N-diethylcarbamoyl, N-methyl-N-ethylcarbamoyl, methylthio, ethylthio,
  • R 1 , R 2 , R 3 , R 4 , R 5 , A, B and D the carbon ranges for the groups alkyl, alkenyl, alkynyl, alkoxy, alkanoyl, alkanoyloxy, alkanoylamino, and the like include all ranges encompassed in the recited ranges C 1-10 and C 2-10 .
  • C 1-10 and C 2-10 include a disclosure of C 1-6 and C 1-3 .
  • C 1-10 carbon-chain containing groups such as C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl and so forth include the respective C 1-6 and C 1-3 shorter carbon-chains such as C 1-6 alkyl, C 1-3 alkyl, C 2-6 alkenyl, C 2-3 alkenyl, C 2-6 alkynyl and C 2-3 alkynyl.
  • n is 0; in another embodiment, m is 1; in another embodiment, m is 2.
  • variables are further exemplified as follows:
  • a compound of Formula (I) contains a divalent Cy 1 linking a substituted or unsubstituted Cy 2 to —Ar—CONH—R 1 .
  • Each Ar, Cy 1 and Cy 2 can be optionally substituted with various substituents as defined as R 2 , R 3 and R 4 , respectively.
  • Formula (I) indicates that the attachment of substituents on Cy 1 , Cy 2 and Ar rings is variable.
  • compounds are selected from those of Formulae (I-a), (I-b), (I-c), (I-d), (I-e), (I-f), (I-g), (I-h), (I-i), (I-j), (I-k), (I-l), (I-m), (I-n), (I-o), (I-p), (I-q), and (I-r) with substituents defined as in Formula (I):
  • a compound of the invention is used in inhibiting HDAC enzymes such as, for example, mammalian HDACs. More specifically, a compound of the invention can be used to treat or inhibit HDAC-mediated diseases or abnormalities.
  • one or more (including all) of the substituents R 1 , R 2 , R 3 , R 4 and R 5 are further limited as follows:
  • R 1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH 2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, and R 1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl.
  • R 1 is hydroxyl,
  • n 0, 1 or 2 and each R 2 is independently fluoro, chloro, bromo, or methyl.
  • n 0, 1 or 2 and each R 3 is, if present, a non-hydrogen substituent selected independently from methyl, ethyl, bromo, and trifluoromethyl, or two R 3 together form a spiro-ring on Cy 1 selected from
  • compounds containing such a Spiro moiety include
  • Each R 4 is independently selected from H, chloro, hydroxyl, methyl, ethyl, propyl, acetyl, propanoyl, butanoyl, methoxy, ethoxy, methoxymethyl, ethoxyethyl, propoxyethyl, methoxyethoxy, trifluoromethyl, hydroxyethoxy, dimethylamino, diethylamino, dimethylaminomethyl, diethylaminomethyl, dimethylaminoethoxy, trifluoromethoxymethyl, trifluoroethoxymethyl, benzyl, phenylethyl, trifluoromethylphenylethyl, phenoxymethyl, fluorophenoxymethyl, phenylethylaminomethyl, benzylaminomethyl, triazinylmethyl, piperidinylmethyl, piperidinyloxy, trifluoromethylpiperidinylmethyl, pyridinyloxymethyl, pyridinyl
  • p is 2 or greater and two R 4 groups are substituted at adjacent positions of Cy 2 and form a 5- or 6-membered cyclic moiety to make a fused ring with Cy 2 , wherein the cyclic moiety can be carbocyclic or contain one or more heteroatoms selected from N, O and S; and the cyclic moiety is optionally substituted by one or more R 5 where such an optional substitution is chemically feasible.
  • fused rings include, but are not limited to:
  • s 0, 1, 2 or 3.
  • each R 4 is optionally substituted by one or more B where such an optional substitution is chemically feasible, and if R 4 is aryl, cycloalkyl or heterocyclyl, R 4 is optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible.
  • R 5 is independently selected from chloro, hydroxyl, oxo, methyl, ethyl, propyl, methoxy, ethoxy, methoxymethyl, ethoxyethyl, propoxyethyl, methoxyethoxy, trifluoromethyl, hydroxyethoxy, dimethylamino, diethylamino, dimethylaminomethyl, diethylaminomethyl, dimethylaminoethoxy, trifluoromethoxymethyl, trifluoroethoxymethyl, benzyl, phenylethyl, trifluoromethylphenylethyl, phenoxymethyl, fluorophenoxymethyl, phenylethylaminomethyl, benzylaminomethyl, triazinylmethyl, piperidinylmethyl, piperidinyloxy, trifluoromethylpiperidinylmethyl, pyridinyloxymethyl, pyridinylmethoxy, tetrahydropyrazinyloxy
  • the Cy 1 linker and the —CONHR 1 moiety are disposed about the phenyl ring of Formulae (I-a), (I-c) and (I-e) through (I-r) in either a 1,3-(meta) or a 1,4-(para) configuration.
  • R 2 can be attached to any ring position of the phenyl ring which is not occupied by the Cy 1 linker and —CONHR 1 moiety and such attachment includes 1,2-(ortho), 1,3-(meta) and 1,4-(para) configurations wherein the Cy 1 linker is at position 1.
  • ortho-, meta- and para-configurations of R 2 mean attachment to positions 2, 3 and 4 of the phenyl ring as shown in Formulas (I-a) and (I-c), respectively.
  • R 2 is an ortho-substitution (i.e., position 2)
  • meta-CONHR 1 moiety is intended to be at position 5.
  • the invention provides a compound of Formula (I-a) and a pharmaceutically acceptable salt thereof:
  • Cy 1 is cyclopropylidene;
  • R 1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH 2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R 1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl;
  • m is 0 or 1 and R 2 is halo, C 1-40 alkyl
  • Non-limiting examples of such compounds include compounds of Formula (I-a0) and pharmaceutically acceptable salts thereof:
  • R 6 and R 7 are independently selected from the functional groups of R 4 defined herein.
  • Table 1 provides non-limiting examples of compounds of Formula (I-a0) where m is zero where R 6 and R 7 together can form a cyclic moiety to make a fused ring with the thiazole ring (Cy 2 ), that fused ring is shown in the R 6 and R 7 columns of the table.
  • Cy 1 is cyclopropylidene and the thiazole ring Cy 2 is substituted with a fused aryl, cycloalkyl, or heterocyclyl ring.
  • R 1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH 2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R 1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, haloph
  • Non-limiting examples of compounds of Formula (I-a1) include the following compounds shown in Table 2 and pharmaceutically acceptable salts thereof:
  • the groups R 1 , R 4 , R 6′ , R 7′ , R 8 , R 9 and R 10 can be selected to have the same combination of substituents given in the table for Compounds a1-01 to a1-200 where such combinations are chemically feasible.
  • Cy 1 is cyclopropylidene and Cy 2 is substituted by R 4 being a monocyclic aryl, cycloalkyl or heterocyclyl.
  • R 1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH 2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R 1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, hetero
  • Non-limiting examples of Formulae (I-a7), (I-a8), (I-a9), (I-a11), and (I-a12) include the following compounds and pharmaceutically acceptable salts thereof:
  • Table 3 provides non-limiting examples of compounds of Formula (I-a10) where m is zero and R 4 , R 6′ , R 7′ , and R 10 are H, as shown in Structure (A10).
  • Cy 1 is cyclobutylidene, cyclopentylidene, cyclohexylidene or cycloheptylidene;
  • R 1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH 2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R 1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl,
  • Non-limiting examples of such compounds include compounds of Formula (I-a′0) and pharmaceutically acceptable salts thereof:
  • R 1 and R 2 are as defined above; and R 6 and R 7 are selected from groups R 4 .
  • R 1 , R 2 , R 6 and R 7 can be selected to have the same combination of substituents given in the table for Compounds a0-01 to a0-126.
  • Cy 1 is cyclobutylidene, cyclopentylidene, cyclohexylidene or cycloheptylidene and Cy 2 is substituted with a fused ring R 4 .
  • R 1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH 2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R 1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; R 2 is halo, alkyl or haloalkyl; m is 0 or 1 and R 2 is halo, alkyl or haloalky
  • Non-limiting examples of such compounds include compounds of Formulae (I-a′1) to (I-a′6) and pharmaceutically acceptable salts thereof:
  • the groups R 6′ , R 7′ , R 8 , R 9 , and R 10 are independently selected from H and the functional groups of R 5 defined herein, and wherein q is 2, 3, 4 or 5.
  • the groups R 1 , R 2 , R 4 , R 6′ , R 7′ , R 8 , R 9 and R 10 are selected to have the same combination of substituents given in the table for Compounds a1-01 to a1-200.
  • Non-limiting examples of such compounds include the following compounds and pharmaceutically acceptable salts thereof:
  • Cy 1 is cyclobutylidene, cyclopentylidene, cyclohexylidene or cycloheptylidene and Cy 2 is substituted with a monocyclic ring.
  • R 1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH 2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R 1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; R 2 is halo, alkyl or haloalkyl; m is 0 or 1 and R 2 is halo, alkyl or haloalky
  • Non-limiting examples of such compounds include compounds of Formulae (I-a′7) to (I-a′12) and pharmaceutically acceptable salts thereof:
  • the groups R 6′ , R 7′ , R 8 , R 9 , and R 10 are independently selected from H and the functional groups of R 5 defined herein and q is 2, 3, 4, or 5.
  • the groups R 1 , R 4 , R 6′ , R 7′ , R 8 , R 9 and R 10 are selected to have the same combination of substituents as those of Formulae (I-a7), (I-a8), (I-a9), (I-a10), (I-a11), and (I-a12).
  • Non-limiting examples of such compounds include the following compounds and pharmaceutically acceptable salts thereof:
  • Cy 1 is heterocycloalkylidene;
  • R 1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH 2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R 1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl;
  • R 2 is halo, alkyl or haloalkyl;
  • Non-limiting examples of such compounds include compounds of Formula (I-a′′0) and pharmaceutically acceptable salts thereof:
  • R 6 and R 7 are independently selected from groups R 4 ; q is 2, 3, 4 or 5 and each Q is independently —CH 2 — or a heteroatom selected from —NH—, —O— and —S—, and when Q is methylene (—CH 2 —) or imino (—NH—), Q is optionally substituted with a group R 3 .
  • Q adjacent the 1-position is not a heteroatom.
  • q is 2, 3, 4 or 5; each Q is independently —CH 2 — or a heteroatom selected from —NH—, —O— and —S—.
  • Cy 1 is
  • Table 4 provides non-limiting examples of compounds of Formula (I-a′′0) where m is zero, q is four, and Q is oxygen at the 4-position, as shown in Structure (A′′0):
  • Cy 1 is heterocycloalkylidene;
  • R 1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH 2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R 1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl;
  • R 2 is halo, alkyl or haloalkyl;
  • R 6′ , R 7′ , R 8 , R 9 , and R 10 are independently selected from H and the functional groups of R 5 defined herein.
  • q is 2, 3, 4 or 5 and each Q is independently —CH 2 — or a heteroatom selected from —NH—, —O— and —S—, and when Q is methylene (—CH 2 —) or imino (—NH—), Q is optionally substituted with a group R 3 .
  • Q adjacent the 1-position is not a heteroatom.
  • q is 2, 3, 4 or 5; each Q is independently —CH 2 — or a heteroatom selected from —NH—, —O— and —S—; and the groups R 1 , R 4 , R 6′ , R 7′ , R 8 , R 9 and R 10 can be selected to have the same combination of substituents given in the table for Compounds a1-01 to a1-200.
  • Cy 1 is
  • Cy 1 is heterocycloalkylidene; and one and only one R 4 is a monocyclic group.
  • R 1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH 2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R 1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; R 2 is
  • each Q is independently —CM 2 — or a heteroatom selected from —NH—, —O— and —S—; wherein R 1 , R 2 , and R 4 are as defined for various embodiments above, and wherein R 6′ , R 7′ , R 8 , R 9 , and R 10 are selected from H and the functional groups of R 5 defined herein.
  • the groups R 1 , R 4 , R 6′ , R 7′ , R 8 , R 9 and R 10 are selected to have the same combination of substituents as those of Formulae (I-a7), (I-a8), (I-a9), (I-a11), and (I-a12).
  • Cy 1 is
  • Table 5 provides non-limiting examples of compounds of Formula (I-a′′10) where m is zero and R 4 , R 6′ , R 7′ , and R 10 are H, as shown in Structure (A′′10):
  • the invention provides a compound of Formula (I-b) and a pharmaceutically acceptable salt thereof:
  • Cy 1 is cyclopropylidene; and R 4 is independently selected from the group consisting of H, halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 1-10 alkoxy, alkanoyl, C 1-10 alkanoyloxy, N—(C 1-10 alkyl)amino, N,N—(C 1-10 alkyl) 2 amino, C 1-10 alkanoylamino, N—(C 1-10 alkyl)carbamoyl, N,N—(C 1-10 alkyl) 2 carbamoyl, C 1-10 alkyl-S(O) a wherein a is 0, 1 or 2, C 1-10 , alkoxycarbonyl, C 1-10 alkyl,
  • R 6 and R 7 are selected from groups R 4 .
  • m is 0 and —CONH—R 1 is attached to the thiophene ring position adjacent the S atom.
  • the groups R 1 , R 6 and R 7 are selected to have the same combination of substituents given in the table for Compounds a0-01 to a0-126.
  • Cy 1 is cyclopropylidene; and R 4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring and R 4 is optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible; and R 5 is as defined above.
  • Compounds of this embodiment include, but are not limited to, the following formulae:
  • the groups R 6′ , R 7′ , R 8 , R 9 , and R 10 are independently selected from H and the functional groups of R 5 defined herein.
  • m is 0 and —CONH—R 1 is attached to the thiophene at a ring position adjacent to the S atom.
  • the groups R 1 , R 4 , R 6′ , R 7′ , R 8 , R 9 and R 10 are selected to have the same combination of substituents given in the table for Compounds a1-01 to a1-200.
  • Cy 1 is cyclopropylidene; and one and only one R 4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible; and R 5 is as defined above.
  • R 4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible; and R 5 is as defined above.
  • Compounds of this embodiment include, but are not limited to, those of the following formulae:
  • the groups R 6′ , R 7′ , R 8 , R 9 , and R 10 are independently selected from H and the functional groups of R 5 defined herein.
  • m is 0 and —CONH—R 1 is attached to the thiophene ring position adjacent the S atom.
  • the groups R 1 , R 4 , R 6′ , R 7′ , R 8 , R 9 and R 10 are selected to have the same combination of substituents as those of Compounds a7-01 through a12-04. That is, Compounds b7-01 through b12-04 are like a7-01 through a12-04, except the former have thiophene where the latter have phenyl.
  • the invention provides a compound of Formula (I-c) and a pharmaceutically acceptable salt thereof:
  • Cy 1 is cyclopropylidene; and R 4 is independently selected from the group consisting of H, halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 1-10 alkoxy, C 1-10 alkanoyl, C 1-10 alkanoyloxy, N—(C 1-10 alkyl)amino, N,N—(C 1-10 alkyl) 2 amino, C 1-10 alkanoylamino, N—(C 1-10 alkyl)carbamoyl, N,N—(C 1-10 alkyl) 2 carbamoyl, C 1-10 alkyl-S(O) a wherein a is 0, 1 or 2, C 1-10 alkoxycarbon
  • R 1 and R 2 are as defined above; and R 11 , R 12 and R 13 are independently selected from R 4 defined herein.
  • Cy 1 is cyclopropylidene; and one and only one R 4 is aryl, cycloalkyl or heterocycloalkyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible; and R 5 is as defined above.
  • R 4 is aryl, cycloalkyl or heterocycloalkyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible; and R 5 is as defined above.
  • Compounds of this embodiment include, but are not limited to, the following formulae:
  • R 6′ , R 7′ , R 8 , R 9 and R 10 are selected from H and groups R 5 .
  • R 1 , R 2 , R 6′ , R 7′ , R 8 , R 9 and R 10 are selected to have the same combination of substituents given in the table for Compounds a1-01 to a1-200.
  • Cy 1 is cyclopropylidene; and R 4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible; and R 5 is as defined above.
  • Compounds of this embodiment include, but are not limited to, the following formulae:
  • groups R 6′ , R 7′ , R 8 , R 9 , and R 10 are independently selected from H and the functional groups of R 5 defined herein.
  • groups R 4 are H.
  • —C(O)NHR 1 is attached to the phenyl ring at a position para to cyclopropylidene.
  • the groups R 1 , R 2 , R 6′ , R 7′ , R 8 , R 9 and R 10 are selected to have the same combination of substituents as those of Compounds a7-01 through a12-04. That is, Compounds c7-01 through c12-04 are like a7-01 through a12-04, except the former have pyrimidine where the latter have thiazole.
  • the invention provides a compound of Formula (I-d) and a pharmaceutically acceptable salt thereof:
  • Cy 1 is cyclopropylidene; and R 4 is independently selected from the group consisting of H, halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 1-10 alkoxy, C 1-10 alkanoyl, C 1-10 alkanoyloxy, N—(C 1-10 alkyl)amino, N,N—(C 1-10 alkyl) 2 amino, C 1-10 alkanoylamino, N—(C 1-10 alkyl)carbamoyl, N,N—(C 1-10 alkyl) 2 carbamoyl, C 1-10 alkyl-S(O) a wherein a is 0, 1 or 2, C 1-10 alkoxycarbon
  • R 1 and R 2 are as defined above; and R 11 , R 12 and R 13 are independently selected from the functional groups of R 4 defined herein.
  • Cy 1 is cyclopropylidene; and one and only one R 4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring and R 4 is optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible; and R 5 is as defined above.
  • R 4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring and R 4 is optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible; and R 5 is as defined above.
  • Compounds of this embodiment include, but are not limited to, the following formulae:
  • the groups R 6′ , R 7′ , R 8 , R 9 , and R 10 are independently selected from H and the functional groups of R 5 defined herein.
  • m is 0; both groups R 4 are H; and/or —CONH—R 1 is attached to the thiophene ring position adjacent the S atom.
  • the groups R 1 , R 6′ , R 7′ , R 8 , R 9 and R 10 are selected to have the same combination of substituents given in the table for each of Compounds a1-01 to a1-200.
  • Cy 1 is cyclopropylidene; and one and only one R 4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible; and R 5 is as defined above.
  • R 4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring optionally further substituted by one or more R 5 where such an optional substitution is chemically feasible; and R 5 is as defined above.
  • Compounds of this embodiment include, but are not limited to, the following formulae:
  • the groups R 6′ , R 7′ , R 8 , R 9 , and R 10 are independently selected from H and the functional groups of R 5 defined herein.
  • m is 0; both groups R 4 are H; and/or —CONH—R 1 is attached to the thiophene ring position adjacent the S atom.
  • the groups R 1 , R 6′ , R 7′ , R 8 , R 9 and R 10 are selected to have the same combination of substituents as those of Compounds a7-01 through a12-04. That is, Compounds d7-01 through d12-04 are like a7-01 through a12-04, except the former have pyrimidine and thiophene where the latter have thiazole and phenyl, respectively.
  • the invention provides a compound selected from the group consisting of Formulae (I-e), (I-f), (I-g), (I-h), (I-i), (I-j), (I-k), (I-1), (I-m), (I-n), (I-o), (I-p), (I-q), and (I-r), and a pharmaceutically acceptable salt thereof:
  • Non-limiting examples of such compounds include the following compounds and pharmaceutically acceptable salts thereof:
  • the invention provides a compound of Formula (II) or a pharmaceutically acceptable salt thereof:
  • variables are further exemplified as follows:
  • Examples of such compounds include, but are not limited to:
  • a compound of the present invention such as those of Formulae (I), (I-a), (I-b), (I-c), (I-d), (I-e), (I-f), (I-g), (I-h), (I-i), (I-j), (I-k), (I-l), (I-m), (I-n), (I-o), (I-p), (I-q), and (I-r) can be prepared according to the schemes described below, but it shall be appreciated that modifications of the illustrated process or other processes can also be used.
  • Cycloalkylidene linked HDAC inhibitors can be synthesized according to Scheme 1, showing preparation of inhibitors 8a and 8b where Ar is phenyl and where Cy 2 is a substituted thiazole.
  • Scheme 1 ⁇ -cyano-p-methylbenzoic acid ester 1 is reacted with dibromide 2 (q is an integer from 1 to 6) to form cyano intermediate 3a, which is in turn reacted with hydrogen sulfide to yield thioamide compound 4a.
  • Thiazole intermediate 6 is prepared by reacting thioamide 4a with ⁇ -bromo carbonyl compound 5.
  • Substituents R 6 and R 7 on intermediate 5 are selected from H and the functional groups of R 4 defined herein and become the substituents on ring Cy 2 of the inhibitors.
  • Thiazole intermediate 6 is then reacted with 1,2-diamino aryl compound 7a to provide arylamide HDAC inhibitor 8a or with NH 2 OH to provide hydroxamate inhibitor 8b.
  • Scheme 1 can be genericized with respect to the group Ar of the HDAC inhibitors.
  • inhibitors 8′ are synthesized from starting esters 1′ by way of thioamide intermediate 4′.
  • Inhibitors with heterocycloalkylidene linkers Cy 1 can be synthesized analogously to Schemes 1 and 2 by reaction of starting compounds 1 or 1′ with a dibromoether 2′ as in Scheme 3.
  • Scheme 3 illustrates the synthesis when Ar in the inhibitor is a 1,4-substituted phenyl, with Cy 1 taken as position 1.
  • intermediate 5 is prepared containing a ring substituent at R′ according to Scheme 4.
  • a first synthetic route begins with the reaction of an aminopyridine b with a chlorodiketone a to make an acyl imidazopyridine c, which is brominated to bromoketone 5.
  • Cyanocycloalkylidene 3a is converted to urea compound 4a and reacted with aminoketone 5 to give ester 6.
  • Ester 6 is converted to arylamide 8a or to hydroxamate 8b.
  • pyrimidine compounds can be synthesized according to Scheme 7, where intermediate 6 is alkylated to form cycloalkylidene 3 before reaction to the hydroxamate or arylamide.
  • intermediate 6 of Scheme 7 can be alkylated as in Scheme 3 to form a heterocycloalkylidene analog of intermediate 3 (not shown).
  • the compounds of the present invention inhibit histone deacetylase and are useful to treat or ameliorate diseases mediated directly or indirectly by HDAC. Therefore, another aspect of the present invention is to provide a pharmaceutical composition comprising an effective amount of one or more compounds as described above.
  • a pharmaceutical composition comprising, in addition to one or more compounds described herein, at least one pharmaceutically-acceptable diluent, adjuvant, excipient, or carrier.
  • the composition can take any suitable form for the desired route of administration.
  • any suitable orally deliverable dosage form can be used, including without limitation tablets, capsules (solid- or liquid-filled), powders, granules, syrups and other liquids, elixirs, inhalants, troches, lozenges, and solutions.
  • Injectable compositions or iv infusions are also provided in the form of solutions, suspensions, and emulsions.
  • a pharmaceutical composition according to the present invention may contain one or more additional therapeutic agents, for example, to increase the efficacy or decrease the side effects.
  • a pharmaceutical composition further contains one or more additional therapeutic agents selected from active ingredients useful to treat or inhibit diseases mediated directly or indirectly by HDAC.
  • active ingredients are, without limitation, agents to treat or inhibit cancer, Huntington's disease, cystic fibrosis, liver fibrosis, renal fibrosis, pulmonary fibrosis, skin fibrosis, Rheumatoid arthritis, diabetes, stroke, amyotrophic lateral sclerosis, cardiac hypertrophy, heart failure or Alzheimer's disease.
  • an additional therapeutic agent to be included is an anti-cancer agent.
  • an anti-cancer agent include, but are not limited to, alkylating agents such as cyclophosphamide, dacarbazine, and cisplatin; antimetabolites such as methotrexate, mercaptopurine, thioguanine, fluorouracil, and cytarabine; plant alkaloids such as vinblastine, and paclitaxel; antitumor antibiotics such as doxorubicin, bleomycin, and mitomycin; hormones/antihormones such as prednisone, tamoxifen, and flutamide; other types of anticancer agents such as asparaginase, rituximab, trastuzumab, imatinib, retinoic acid and derivatives, colony-stimulating factors, amifostine, camptothecin, topotecan, thalidomide analogs such as lenalidom
  • Yet another aspect of the present invention is to provide a method of inhibiting or treating diseases arising from abnormal cell proliferation and/or differentiation in animal, comprising administering to said animal a therapeutically effective amount of one or more compounds according to the present invention.
  • the method of inhibiting or treating disease comprises administering to an animal a composition comprising an effective amount of one or more compounds of the invention and a pharmaceutically-acceptable carrier.
  • the composition to be administered may further contain a therapeutic agent such as anti-cancer agent.
  • a method of the present invention is particularly suitable for use with humans, but may be used with other animals, particularly mammals, such as, for example, non-human primates, companion animals, farm animals, laboratory animals, and wild and zoo animals.
  • a method of the present invention is particularly useful to treat diseases mediated directly or indirectly by HDAC since the compounds of the present invention have inhibitory activity against those molecules.
  • a method of the present invention is used in inhibiting or treating HDAC-mediated diseases.
  • diseases include, but are not limited to, cell proliferative diseases such as cancer, autosomal dominant disorders such as Huntington's disease, genetic related metabolic disorder such as cystic fibrosis, fibrosis such as liver fibrosis, renal fibrosis, pulmonary fibrosis and skin fibrosis, autoimmune diseases such as Rheumatoid arthritis, diabetes, acute and chronic neurological diseases such as stroke, hypertrophy such as cardiac hypertrophy, heart failure including congestive heart failure, amyotrophic lateral sclerosis, and Alzheimer's disease.
  • cell proliferative diseases such as cancer, autosomal dominant disorders such as Huntington's disease, genetic related metabolic disorder such as cystic fibrosis, fibrosis such as liver fibrosis, renal fibrosis, pulmonary
  • a method according to the present invention is applied to a patient with cancer, cystic fibrosis, or pulmonary fibrosis.
  • a method using a compound according to the present invention is used to treat or inhibit a cancer selected from bladder cancer, breast cancer, colon and rectal cancer, endometrial cancer, kidney (renal cell) cancer, leukemia, lung cancer, melanoma, non-Hodgkin's lymphoma, pancreatic cancer, prostate cancer, skin cancer (non-melanoma), and thyroid cancer.
  • Int-4 (0.11 g, 0.42 mmol) and Int-3 (0.10 g, 0.42 mmol) were dissolved in EtOH (10 mL) and heated to reflux under stirring for 20 minutes. The reaction mixture was evaporated under vacuum. The crude Int-5 (0.15 g) was used in the next step without further purification. Int-5 (0.15 g, 0.38 mmol) was dissolved in MeOH (6 mL) and treated with an aqueous solution of 1N NaOH (2 mL). The reaction mixture was stirred for 2 hours and then 1N aqueous HCl was added until reaching pH 5. The suspension was filtered out to have Int-6 (0.14 g, 0.36 mmol, 94%).
  • Int-2 (0.2 g, 16.51 mmol) was dissolved in a mixture of HBr/AcOH 33% (2 mL) and AcOH (4 mL). 93.3 ⁇ L Br 2 (1.1 equivalents (eq)) in chloroform (3 mL) was added slowly to the solution at room temperature. After 5 minutes the crystals in suspension were filtered out and worked out with water and EtOAc. The organic phase was dried with MgSO 4 and evaporated under vacuum. The crude product was used without further purification for next step. The procedure to synthesize Int-5 of Example 1 was followed to synthesize Int-4 but using Int-3. The same procedure to get Int-6 and Int-7 of Example 1 was used to synthesize Compound 6 from Int-4.
  • Example 1 The same procedure to get Int-2 and Int-3 of Example 1 was used to synthesize Int-3. Then the procedure to get Int-5 of Example 1 was followed for the synthesis of Int-4 and Int-7 but using 2-bromo-1-pyridin-3-yl-ethanone and 2-bromo-1-(2-methyl-imidazo[1,2-a]pyridin-3-yl)-ethanone. Following the procedure to get Int-6 of Example 1, Int-5 and Int-8 were synthesized.
  • Tetrahydro-pyran-4-one (100 mg, 1.0 mmol), triethylamine (TEA) (0.139 mL, 1.0 eq), and trimethylchlorosilane (TMSCl) (0.127 mL, 1.0 eq) were mixed together in DMF and heated at 80° C. for 2 hours. After the reaction was done, the mixture was evaporated and re-dissolved in THF NaOAc (16.3 mg) and N-bromosuccinimide (NBS) (177 mg, 1.0 eq) was added at ⁇ 78° C. and stirred for 1 hour.
  • THF NaOAc (16.3 mg
  • N-bromosuccinimide N-bromosuccinimide
  • Methyl 4-(cyanomethyl)-benzoic acid methyl ester (1.92 g, 11.01 mmol) and 1-bromo-2-(2-bromo-ethoxy)-ethane (12.56 mL, 55.04 mmol) were combined in THF (15 mL) and cooled down to 0° C.
  • Potassium bis(trimethylsilyl)-amide (0.5M in toluene, 48.3 mL, 24.21 mmol, 2.2 eq) was added over a period of 15 minutes and then warmed up to room temperature and stirred for 2 hours.
  • the reaction mixture was partitioned between ethyl acetate and water. The organic phase was dried with MgSO 4 and evaporated under vacuum.
  • reaction mixture was then evaporated and purified by silica gel chromatography (33% EtOAc/hexanes) to afford 4-(4-thiocarbamoyl-tetrahydro-pyran-4-yl)-benzoic acid methyl ester.
  • 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester 300 mg, 1.22 mmol was suspended in water and then 4N NaOH was added and heated at 110° C. for 15 minutes. To this solution 2N HCl was added to precipitate the product. The solid was filtered out and used for next step without further purification.
  • 4-(4-carbamoyl-tetrahydro-pyran-4-yl)-benzoic acid 200 mg, 0.80 mmol was dissolved in DMF and then DMA-acetal in excess was added. The mixture was heated at 50° C. for 20 minutes. The reaction mixture was evaporated and used for next step without further purification.
  • HDAC inhibitory activity of the compound of Example 1 was measured by two types of assays in which HDAC 1 and 6 were used as a target molecule.
  • the first assay was carried out without preincubation after addition of the enzyme.
  • the test compound was suspended in and titrated in DMSO. It was then spotted into a 384-well test plate.
  • the enzyme, HDAC 1 or 6 was diluted in assay buffer containing 25 mM Tris-HCl (pH 8.0), 137 mM NaCl, 2.7 mM KCl, and 0.01% Tween-20 and added to the pre-spotted compound.
  • the peptide substrate containing a fluorophore/quencher pair was diluted in the same assay buffer and added to the compound/enzyme mix initiating the reaction.
  • the reaction incubated at room temperature for about 45 minutes.
  • a concentrated developer solution was diluted in the assay buffer, and added to the reaction.
  • the reaction was incubated at room temperature for about 15 minutes and relative fluorescence was read on an instrument reader.
  • the second assay is similar to the first assay described above, except that preincubation is carried out for about 3 hours after the enzyme is introduced.
  • the test compound was suspended in, and titrated in DMSO. It was then spotted into a 384-well test plate.
  • the enzyme, HDAC 1 or 6 was diluted in the same assay buffer as used in the previous assay and added to the pre-spotted compound.
  • the enzyme/compound mix was incubated at room temperature for about 3 hours.
  • the peptide substrate containing a fluorophore/quencher pair was diluted in the assay buffer and added to the compound/enzyme mix initiating the reaction.
  • the reaction incubated at room temperature for 45 minutes.
  • a concentrated developer solution was diluted in the assay buffer, and added to the reaction.
  • the reaction was incubated at room temperature for about 15 minutes and relative fluorescence was read on an instrument reader.
  • Table 6 shows IC 50 data for the compound tested with the protocols described above.
  • Example 1 IC 50 of HDAC inhibitor compounds HDAC 1 inhibitory activity (IC 50 [ ⁇ M]) Compound (3-hour preincubation)
  • Example 1 0.0239
  • Example 2 0.024
  • Example 3 0.065
  • Example 4 0.331
  • Example 5 0.012
  • Example 6 0.012
  • Example 7 0.008
  • Example 8 0.037
  • Example 9 0.003
  • Example 10 0.279
  • Example 12 0.016
  • Example 15 0.119
  • Example 16 0.0988
  • Example 17 0.0982287
  • Example 18 0.0139298
  • Example 19 0.0518244
  • Example 20 0.0189882
  • Example 21 0.006
  • Example 22 0.014
  • Example 23 0.032
  • Example 24 0.013
  • Example 25 0.006
  • Example 26 0.017
  • Example 27 0.019
  • Example 28 0.0026
  • Example 29 0.032
  • Example 30 0.067
  • Example 31 0.001
  • Example 32 0.0025
  • Example 33 0.0029

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Abstract

The present invention provides a compound of general Formula (I) having histone deacetylase (HDAC) inhibitory activity, a pharmaceutical composition comprising the compound, and a method useful to treat diseases using the compound.
Figure US20120045412A1-20120223-C00001

Description

    CROSS REFERENCE TO RELATED APPLICATION
  • This application is a divisional application of U.S. Ser. No. 12/510,809 filed Jul. 28, 2009 and claims the benefit of U.S. provisional application Ser. No. 61/084,081 filed Jul. 28, 2008. The disclosure of the parent and provisional applications are hereby incorporated by reference.
    • FIELD
  • The present invention generally relates to a compound having enzyme inhibitory activity, pharmaceutical compositions comprising the compound, and methods useful for treating diseases.
    • BACKGROUND
  • Histones are protein components making up chromatin in association with DNA. Histones are subject to covalent modifications of various enzymes such as, for example, histone deacetylase (HDAC), histone methyltransferase (HMT) and histone acetyltransferase (HAT). Covalent modifications of core histones influence protein-protein interaction and protein access to DNA.
  • HDACs catalyze deacetylation of lysine residues on histones and other proteins. It is known that low levels of histone-acetylation are associated with repression of gene expression. Therefore, abnormal HDAC activities could destroy the delicate balance in cell regulation. The HDACs belong to four structurally and functionally different phylogenetic classes: class I (HDAC-1, -2, -3, and -8) compounds are closely related to yeast RPD3; class IIa (HDAC-4, -5, -7, and -9) and class IIb (HDAC-6 and -10) share domains with yeast HDAC-1; class IV, recently described (comprising HDAC-11), exhibits properties of both class I and class II HDACs. All the above HDACs are zinc dependent proteases. Class III HDACs have been identified on the basis of sequence similarity with Sir2, a yeast transcription repressor, and require the cofactor NAD+ for their deacetylase function. See, for example, Marielle Paris et al., Histone Deacetylase Inhibitors: From Bench to Clinic, JOURNAL OF MEDICINAL CHEMISTRY 51(11): 3330-3330 (2008).
  • It has been reported that HDAC activities play an important role in a variety of human disease states. Accordingly, an HDAC inhibitor can provide therapeutic benefits to a broad range of patients. Due to the therapeutic significance, various types of HDAC inhibitors have been developed to date. See, for example, Moradei et al., Histone Deacetylase Inhibitors: Latest Developments, Trends, and Prospects, CURR. MED. CHEM.: ANTI-CANCER AGENTS 5(5):529-560 (2005).
  • WO 2005/092899 mentions a series of compounds useful for inhibiting HDAC enzymatic activity where the compounds are amino or hydroxyl substituted aniline derivatives attached to various cyclic groups.
  • There is a continued need to develop new inhibitors to provide appropriate therapy for a variety of disease conditions implicated in HDAC activity.
    • SUMMARY
  • In various embodiments, a compound having HDAC inhibitory activity, a composition comprising the compound, and a method useful to treat diseases arising from abnormal cell proliferation or differentiation are provided.
  • The compound is of Formula (I) or a pharmaceutically acceptable salt thereof:
  • Figure US20120045412A1-20120223-C00002
  • wherein
      • Cy1 is cycloalkylidene or heterocycloalkylidene;
      • Cy2 is cycloalkyl, aryl or heterocyclyl;
      • Ar is aryl or heteroaryl;
      • m is an integer from 0 to the maximum number of substitutable positions on Ar;
      • n is an integer from 0 to the maximum number of substitutable positions on Cy1;
      • p is an integer equal to the number of substitutable positions on Cy2, wherein a substitutable position is one that, based on the valence of the ring atom occupying the position, can contain H or other substituent. Carbon ring atoms are substitutable, while O and S ring atoms are not substitutable. N ring atoms are substitutable or not, depending on valence. Further, the ring position of Cy2 occupied by Cy1 is not substitutable;
      • R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH and aryl or heteroaryl is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl;
      • each R2 is independently selected from the group consisting of hydroxyl, oxo, halo, nitro, cyano, trifluoromethyl, trifluoromethoxy, amino, carboxyl, carbamoyl, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, N—(C1-10 alkyl)amino, (C1-10 alkyl)2 amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2 carbamoyl, C1-10 alkyl-S(O), wherein a is 0, 1 or 2, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, cycloalkyl, heterocyclyl and aryl;
      • each R3 is independently selected from the group consisting of hydroxyl, oxo, halo, nitro, cyano, trifluoromethyl, trifluoromethoxy, amino, carboxyl, carbamoyl, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2 amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2 carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, cycloalkyl, heterocyclyl and aryl, wherein each R3 is optionally substituted by one or more A where such an optional substitution is chemically feasible; and alternatively or in addition two groups R3 are substituted on the same carbon ring atom of Cy1 and together with the carbon ring atom of Cy1 form a ring situated on Cy1 in a spiro configuration; in various embodiments the spiro-ring on Cy1 is cycloalkyl or heterocycloalkyl, containing from 3 to 7 ring atoms, and is optionally substituted by one or more A;
      • each R4 is independently selected from the group consisting of H, halo, nitro, cyano, hydroxyl, oxo, hydroxy(C1-10 alkyl), amino(C1-10 alkyl), haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, hydroxy(C1-10 alkoxy)(C1-10 alkoxy), (C1-10 alkoxy)(C1-10 alkoxy), (C1-10 alkoxy)(C1-10 alkyl), C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2-amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, NH2—CO—NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, aryl, arylalkyl, aryloxy, arylthio, cycloalkyl, cycloalkylalkyl, cycloalkyloxy, heterocyclyl, heterocyclylalkyl, heterocyclyl(C═O)—, heterocyclyloxy and heterocyclylthio, wherein if R4 is not aryl, cycloalkyl or heterocyclyl, each R4 is optionally substituted by one or more B where such an optional substitution is chemically feasible, and if R4 is aryl, cycloalkyl or heterocyclyl, R4 is optionally further substituted by one or more R5 where such an optional substitution is chemically feasible, or
      • when p is 2 or greater, two R4 groups together can form a 5- or 6-membered cyclic moiety to make a fused ring with Cy2 ring, wherein the cyclic moiety can contain one or more heteroatoms selected from N, O and S and the fused ring is optionally substituted by one or more R5 where such an optional substitution is chemically feasible;
      • each R5 is independently selected from halo, nitro, cyano, hydroxyl, oxo, hydroxy(C1-10 alkyl), amino(C1-10 alkyl), haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, hydroxy(C1-10 alkoxy)(C1-10 alkoxy), (C1-10 alkoxy)(C1-10 alkoxy), (C1-10 alkoxy)(C1-10 alkyl), C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, NH2—CO—NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, aryl, arylalkyl, aryloxy, arylthio, cycloalkyl, cycloalkylalkyl, cycloalkyloxy, heterocyclyl, heterocyclylalkyl, heterocyclyl(C═O)—, heterocyclyloxy and heterocyclylthio, wherein each R5 is optionally substituted by one or more D where such an optional substitution is chemically feasible; and
      • A, B and D are independently selected from halo, nitro, cyano, hydroxyl, oxo, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O), wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, H2NS(O)2NH—, N—(C1-10 alkyl)NHS(O)2NH—, N,N—(C1-10 alkyl)2NS(O)2NH—, aryl, aryloxy, arylthio, cycloalkyl, cycloalkyloxy, heterocyclyl, heterocyclyl(C═O)—, heterocyclyloxy and heterocyclylthio.
  • Pharmaceutical compositions comprise an HDAC-inhibitory effective amount of one or more compounds described herein and a pharmaceutically-acceptable carrier.
  • Methods of inhibiting or treating diseases arising from abnormal cell proliferation and differentiation comprise administering to a subject a therapeutically effective amount of one or more compounds described herein. Other methods involve co-therapies by administering one or more of the compounds together with other anti-cancer agents.
  • The compounds above are more fully described in the detailed description that follows.
    • DETAILED DESCRIPTION
  • The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses.
  • Definitions
  • “Alkenyl” refers to a straight or branched hydrocarbyl group with at least one site of unsaturation, i.e. a carbon-carbon, sp2 double bond. In an embodiment, alkenyl has from 2 to 12 carbon atoms. In some embodiments, alkenyl is a C2-C10 alkenyl group or a C2-C6 alkenyl group. Examples of alkenyl group include, but are not limited to, ethylene or vinyl (—CH═CH2), allyl (—CH2CH═CH2), cyclopentenyl (—C5H7), and 5-hexenyl (—CH2CH2CH2CH2CH═CH2).
  • “Alkanoyl” is the group RC(O)—; “alkanoyloxy” is RC(O)O—; and “alkanoylamino” is RC(O)NR′—; where R is an alkyl group as defined herein, and R′ is H or alkyl. In various embodiments, R is a C1-C10 alkyl group or a C1-C6 alkyl group.
  • “Alkoxy” is RO— where R is alkyl. Non-limiting examples of alkoxy groups include methoxy, ethoxy and propoxy.
  • “Alkoxyalkyl” refers to an alkyl moiety substituted with an alkoxy group. Examples of alkoxyalkyl groups include methoxymethyl, methoxyethyl, methoxypropyl and ethoxyethyl.
  • “Alkoxycarbonyl” is ROC(O)—, where R is an alkyl group as defined herein. In various embodiments, R is a C1-C10 alkyl group or a C1-C6 alkyl group.
  • “Alkyl” refers to a straight or branched chain saturated hydrocarbyl group. In an embodiment, alkyl has from 1 to 12 carbon atoms. In some embodiments, alkyl is a C1-C10 alkyl group or a C1-C6 alkyl group. Examples of alkyl groups include, but are not limited to, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, hexyl, heptyl, octyl, nonyl and decyl.
  • “Alkylamino” refers to an amino group substituted with one or more alkyl groups. “N-(alkyl)amino” is RNH— and “N,N-(alkyl)2amino” is R2N—, where the R groups are alkyl as defined herein and are the same or different. In various embodiments, R is a C1-C10 alkyl group or a C1-C6 alkyl group. Examples of alkylamino groups include methylamino, ethylamino, propylamino, butylamino, dimethylamino, diethylamino, and methylethylamno.
  • “Alkylaminoalkyl” refers to an alkyl moiety substituted with an alkylamino group, wherein alkylamino is as defined herein. Examples of alkylaminoakyl groups include methylaminomethyl and ethylaminomethyl.
  • “Alkynyl” refers to a straight or branched carbon-chain group with at least one site of unsaturation, i.e. a carbon-carbon, sp triple bond. In an embodiment, alkynyl has from 2 to 12 carbon atoms. In some embodiments, alkynyl is a C2-C10 alkynyl group or a C2-C6 alkynyl group. Examples of alkynyl groups include acetylenic (—C≡CH) and propargyl (—CH2C≡CH).
  • “Aryl” refers to a monocyclic, bicyclic or tricyclic carbon ring system of up to 7 atoms in each ring, wherein at least one ring is aromatic. In various embodiments, aryl encompasses a ring system of up to 14 carbons atoms. Aryl includes a carbocyclic aromatic ring fused with a 5- or 6-membered cycloalkyl group. Examples of aryl groups include, but are not limited to, phenyl, naphthyl, tetrahydronaphthyl and indanyl.
  • “Aryloxy” is RO—, where R is aryl. “Arylthio” is RS—, where R is aryl.
  • “Carbamoyl” is the group NH2—C(O)—; the nitrogen can be substituted with alkyl groups. N-(alkyl)carbamoyl is RNH—C(O)— and N,N-(alkyl)2 carbamoyl is R2N—C(O)—, where the R groups are alkyl as defined herein and are the same or different. In various embodiments, R is a C1-C10 alkyl group or a C1-C6 alkyl group.
  • “Cycloalkyl” is a hydrocarbyl group containing at least one saturated or partially unsaturated ring structure, and attached via a ring carbon. In various embodiments, it refers to a saturated or a partially unsaturated C3-C12 cyclic moiety, examples of which include cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl, cycloheptyl and cyclooctyl.
  • “Cycloalkyloxy” is RO—, where R is cycloalkyl.
  • “Cycloalkylalkyl” refers to an alkyl moiety substituted with a cycloalkyl group, wherein cycloalkyl is as defined herein. Examples of cycloalkylalkyl groups include, but are not limited to, cyclopropylmethyl, cyclobutylmethyl, cyclopentylethyl and cyclohexylmethyl.
  • “Cycloalkylidene” refers to a divalent group formed from cycloalkane having two substituents on a single carbon of the cycloalkane. It can be represented in illustrative fashion by the following formula,
  • Figure US20120045412A1-20120223-C00003
  • wherein q determines the size of the ring and is one or greater. For example, q=2 makes cyclobutylidene. In various embodiments, cycloalkylidene is a divalent C3-C12 cyclic moiety. Examples of cycloalkylidene groups include cyclopropylidene, cyclobutylidene, cyclopentylidene and cyclohexylidene.
  • “Dialkylamino” refers to an RR′N— group where R and R′ are independently alkyl as defined herein. Examples of dialkylamino groups include, but are not limited to, dimethylamino, diethylamino, methylethylamino and methylpropylamino. In various embodiments, R and R′ are independently a C1-C10 alkyl group or a C1-C6 alkyl group.
  • “Dialkylaminoalkyl” refers to an alkyl moiety substituted with a dialkylamino group, wherein dialkylamino is as defined herein. Examples of dialkylaminoalkyl groups include, but are not limited to, dimethylaminomethyl and diethylaminomethyl.
  • “Feasible” refers to a structure or process that is capable of being accomplished; one that is possible, suitable, or logical. When a structure or process is “chemically feasible”, that structure or process is synthetically attainable, chemically stable to the typical ambient conditions and/or contributes to favorable biological properties such as efficacy, bioavailability and minimal toxicity for the intended use. Chemically feasible structures are bound by the rules of electron bonding, whereby bonds can only be formed between atoms that are capable of forming bonds with one another. Likewise, chemically feasible processes can only produce structures that are themselves chemically feasible.
  • “Halo” refers to chloro (—Cl), bromo (—Br), fluoro (—F) or iodo (—I).
  • “Haloalkoxy” refers to an alkoxy group substituted with one or more halo groups. Examples of haloalkoxy groups include, but are not limited to, —OCF3, —OCHF2 and —OCH2F.
  • “Haloalkoxyalkyl” refers to an alkyl moiety substituted with a haloalkoxy group, wherein haloalkoxy is as defined herein. Examples of haloalkoxyalkyl groups include trifluoromethoxymethyl, trifluoroethoxymethyl and trifluoromethoxyethyl.
  • “Haloalkyl” refers to an alkyl moiety substituted with one or more halo groups. Examples of haloalkyl groups include —CF3 and —CHF2.
  • “Heterocyclyl” includes heteroaryl and heterocycloalkyl defined below and refers to an unsaturated, saturated, or partially unsaturated heterocyclic group. In various embodiments, it is a monocyclic, bicyclic or tricyclic group of 2 to 14 ring-carbon atoms. In addition to ring-carbon atoms, at least one ring has one or more heteroatoms selected from P, N, O and S. In various embodiments, the heterocyclic group is attached to another moiety through carbon or through a heteroatom, and is optionally substituted on carbon or a heteroatom. Examples of heterocyclyl include azetidinyl, benzoimidazolyl, benzofuranyl, benzofurazanyl, benzopyrazolyl, benzotriazolyl, benzothiophenyl, benzoxazolyl, carbazolyl, carbolinyl, cinnolinyl, furanyl, imidazolyl, indolinyl, indolyl, indolazinyl, indazolyl, isobenzofuranyl, isoindolyl, isoquinolyl, isothiazolyl, isoxazolyl, naphthpyridinyl, oxadiazolyl, oxazolyl, oxazoline, isoxazoline, oxetanyl, pyranyl, pyrazinyl, pyrazolyl, pyridazinyl, pyridopyridinyl, pyridazinyl, pyridyl, pyrimidyl, pyrrolyl, quinazolinyl, quinolyl, quinoxalinyl, tetrahydropyranyl, tetrahydrothiopyranyl, tetrahydroisoquinolinyl, tetrazolyl, tetrazolopyridyl, thiadiazolyl, thiazolyl, thienyl, triazolyl, azetidinyl, 1,4-dioxanyl, hexahydroazepinyl, piperazinyl, piperidinyl, pyridin-2-onyl, pyrrolidinyl, morpholinyl, thiomorpholinyl, dihydrobenzoimidazolyl, dihydrobenzofuranyl, dihydrobenzothiophenyl, dihydrobenzoxazolyl, dihydrofuranyl, dihydroimidazolyl, dihydroindolyl, dihydroisooxazolyl, dihydroisothiazolyl, dihydrooxadiazolyl, dihydrooxazolyl, dihydropyrazinyl, dihydropyrazolyl, dihydropyridinyl, dihydropyrimidinyl, dihydropyrrolyl, dihydroquinolinyl, dihydrotetrazolyl, dihydrothiadiazolyl, dihydrothiazolyl, dihydrothienyl, dihydrotriazolyl, dihydroazetidinyl, methylenedioxybenzoyl, tetrahydrofuranyl, and tetrahydrothienyl, and N-oxides thereof.
  • “Heterocyclylalkyl” is an alkyl group substituted with a heterocyclyl.
  • “Heterocyclyloxy” is RO—, where R is heterocyclyl. “Heterocyclylthio” is RS—, where R is heterocyclyl.
  • “Heteroaryl” is a heterocyclyl where at least one ring is aromatic. In various embodiments, it refers to a monocyclic, bicyclic or tricyclic ring having up to 7 atoms in each ring, wherein at least one ring is aromatic and contains from 1 to 4 heteroatoms in the ring selected from the group consisting of N, O and S, Non-limiting examples of heteroaryl include pyridyl, thienyl, furanyl, pyrimidyl, imidazolyl, pyranyl, pyrazolyl, thiazolyl, thiadiazolyl, isothiazolyl, oxazolyl, isoxazoyl, pyrrolyl, pyridazinyl, pyrazinyl, quinolinyl, isoquinolinyl, benzofuranyl, dibenzofuranyl, dibenzothiophenyl, benzothienyl, indolyl, benzothiazolyl, benzooxazolyl, benzimidazolyl, isoindolyl, benzotriazolyl, purinyl, thianaphthenyl and pyrazinyl. Attachment of heteroaryl can occur via an aromatic ring, or, if heteroaryl is bicyclic or tricyclic and one of the rings is not aromatic or contains no heteroatoms, through a non-aromatic ring or a ring containing no heteroatoms. “Heteroaryl” is also understood to include the N-oxide derivative of any nitrogen containing heteroaryl.
  • “Heteroaryloxy” is RO—, where R is heteroaryl.
  • “Heterocycloalkyl” is a heterocyclyl where no rings are aromatic.
  • “Heterocycloalkylidene” refers to a divalent group formed from a heterocyclyl with two substituents on a single ring carbon. It can be represented in illustrative fashion by the formula
  • Figure US20120045412A1-20120223-C00004
  • where q determines the size of the ring and is one or greater. Each Q is independently —CH2— or a heteroatom selected from —NH—, —O— and —S—, and when Q is methylene(—CH2—) or imino (—NH—), Q is optionally substituted with a group R3 as defined herein.
  • “Hydroxyalkoxy” refers to an alkoxy group substituted with a hydroxyl group (—OH), wherein alkoxy is as defined herein. An example of hydroxyalkoxy is hydroxyethoxy.
  • “Hydroxyalkyl” refers to a linear or branched monovalent C1-C10 hydrocarbon group substituted with at least one hydroxyl group. Examples of hydroxyalkyl groups include, but are not limited to, hydroxymethyl, hydroxyethyl, hydroxypropyl and hydroxybutyl.
  • If a substituent is described as being “optionally substituted”, the substituent may be either (1) not substituted or (2) substituted. If a substituent is described as being optionally substituted with up to a particular number of non-hydrogen radicals, that substituent may be either (1) not substituted; or (2) substituted by up to that particular number of non-hydrogen radicals or by up to the maximum number of substitutable positions on the substituent, whichever is less.
  • “Sulphamoyl” is NH2—S(O)2—; “N-(alkyl)sulphamoyl” is RNH—S(O)2—; and “N,N-(alkyl)2 sulphamoyl” is R2N—S(O)2—, where the R groups are alkyl as defined herein and are the same or different. In various embodiments, R is a C1-C10 alkyl group or a C1-C6 alkyl group.
  • “Pharmaceutically-acceptable” means suitable for use in pharmaceutical preparations, generally considered as safe for such use, officially approved by a regulatory agency of a national or state government for such use, or being listed in the U.S. Pharmacopoeia or other generally recognized pharmacopoeia for use in animals, and more particularly in humans.
  • “Pharmaceutically-acceptable carrier” refers to a diluent, adjuvant, excipient, carrier, other ingredient, or combination of ingredients that is pharmaceutically-acceptable and with which a compound of the invention is administered.
  • “Pharmaceutically-acceptable salt” refers to a salt that may enhance desired pharmacological activity. Examples of pharmaceutically-acceptable salts include acid addition salts formed with inorganic or organic acids, metal salts and amine salts. Examples of acid addition salts formed with inorganic acids include salts with hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid and phosphoric acid. Examples of acid addition salts formed with organic acids such as acetic acid, propionic acid, hexanoic acid, heptanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, o-(4-hydroxy-benzoyl)-benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, 1,2-ethanedisulfonic acid, 2-hydroxyethane-sulfonic acid, benzenesulfonic acid, p-chlorobenzenesulfonic acid, 2-naphthalenesulfonic acid, p-toluenesulfonic acid (p-TsOH), camphorsulfonic acid, 4-methyl-bicyclo[2.2.2]oct-2-ene1-carboxylic acid, gluco-heptonic acid, 4,4′-methylenebis(3-hydroxy-2-naphthoic) acid, 3-phenylpropionic acid, trimethyl-acetic acid, tertiary butylacetic acid, lauryl sulfuric acid, gluconic acid, glutamic acid, hydroxy-naphthoic acids, salicylic acid, stearic acid and muconic acid. Examples of metal salts include salts with sodium, potassium, calcium, magnesium, aluminum, iron, and zinc ions. Examples of amine salts include salts with ammonia and organic nitrogenous bases strong enough to form salts with carboxylic acids.
  • “Therapeutically-effective amount” refers to an amount of a compound that, when administered to a subject for treating a disease, is sufficient to effect treatment for the disease. “Therapeutically effective amount” can vary depending on the compound, the disease and its severity, and the age, the weight, etc. of the subject to be treated.
  • Embraced herein, where applicable, are permissible isomers such as tautomers, racemates, enantiomers, diastereomers, atropisomers, configurational isomers of double bonds (E- and/or Z-), cis- and trans-configurations in ring substitution patterns, and isotopic variants.
  • In one embodiment, the invention provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof:
  • Figure US20120045412A1-20120223-C00005
  • wherein m, n, p, Cy1, Cy2, Ar, R1, R2, R3 and R4 are as defined above.
  • In various embodiments, the substitution with —NH2 or —OH on aryl or heteroaryl of R1 is adjacent to the attachment of the Ar—C(O)—NH— group to the aryl or heteroaryl.
  • In an embodiment, R1 is hydroxyl and the compounds are characterized as hydroxamates. In another embodiment, R1 is substituted aryl or heteroaryl and the compounds are characterized as arylamides.
  • In an embodiment, Ar is phenyl. In various embodiments, the Cy1 and —C(O)NH—R1 groups are disposed on the phenyl in a 1,4-configuration, where Cy1 is considered as the 1-position.
  • In an embodiment, Ar is thiophene. In various embodiments, the Cy1 and —C(O)NH—R1 groups are disposed on the thiophene in a 2,5-configuration, where Cy1 is considered as the 2-position (with the S atom of the thiophene ring taken as the 1-position).
  • In an embodiment, Ar is pyridine. In various embodiments, the Cy1 and —C(O)NH—R1 groups are disposed on the pyridine in a 2,5-configuration, where Cy1 is considered as the 2-position, or in a 3,6-configuration, where Cy1 is considered as the 3-position (in all cases, the N atom of the pyridine ring is taken as the 1-position).
  • In an embodiment, Ar is thiazole. In various embodiments, the Cy1 and —C(O)NH—R1 groups are disposed on the thiazole in a 2,4- or 2,5-configuration, where the Cy1 is considered as the 2-position (with the S atom of the thiazole ring taken as the 1-position).
  • In an embodiment, Cy1 is C3-7 cycloalkylidene, where the Ar and Cy2 groups are substituted in a 1,1-configuration on the C3-7 ring. The ring of cycloalkylidene is optionally substituted with one or more groups R3 as further defined herein. In various embodiments, the ring is completely saturated with H so that the variable n in Formula (I) is zero. In particular embodiments, Cy1 is cyclopropylidene, cyclobutylidene, or cyclopentylidene.
  • In an embodiment, Cy1 is a heterocyclic group with 1,1-disubstitution by the Ar and Cy2 rings. Examples include 5- to 7-membered rings containing at least one heteroatom selected from N, O, and S. In preferred embodiments, there is no heteroatom substitution in Cy1 adjacent the 1,1-attachment of Ar and Cy2. Carbon atoms in the 1,1-disubstituted heterocyclic ring are optionally substituted with one or more oxo groups (i.e.,
  • Figure US20120045412A1-20120223-C00006
  • ), and substitutable positions on the ring are optionally substituted with 1 or more groups R3. In various embodiments, the only substituent R3 is an oxo group on carbon. In other embodiments, all substitutable positions contain H, so that the variable n in Formula (I) is zero. A non-limiting example of Cy1 is tetrahydropyran-4,4-diyl (i.e.,
  • Figure US20120045412A1-20120223-C00007
  • ), where Ar and Cy2 are attached to the 4-position of tetrahydropyran, with the oxygen position taken as position 1.
  • In an embodiment, the ring Cy2 is a nitrogen containing heterocyclyl. In various embodiments, Cy2 is a 5-membered or 6-membered heterocyclyl. Examples include pyrrole, imidazole, pyrazole, triazole, tetrazole, thiazole, isothiazole, oxazole, isoxazole, pyridine, dihydropyridine, pyrimidine, pyrazine, pyridazine, and triazines. In various embodiments, Cy2 is a fused bicyclic ring system containing a 5- or 6-membered nitrogen containing heteroaryl ring fused to another ring.
  • In an embodiment, Cy2 is selected from
  • Figure US20120045412A1-20120223-C00008
  • where the wavy lines show a position of attachment of the Cy1 group and each optional R4 group is attached to any other available positions on the Cy2 ring.
  • In some embodiments, Cy2 is a heterocyclic group substituted by one or more oxo groups. Non-limiting examples of such Cy2 include:
  • Figure US20120045412A1-20120223-C00009
  • where the wavy lines show a position of attachment of the Cy1 group and each optional R4 group is attached to any other available positions on the Cy2 ring.
  • In various embodiments, at least one of the substituents on ring Cy2 is a cyclic group. In various embodiments, the cyclic group R4 is a 5- or 6-membered ring nitrogen containing heteroaryl, optionally fused. The cyclic group optionally contains one or more substituents R5, as further defined herein.
  • In an embodiment, A, B and D are independently selected from the group consisting of halo, alkyl, nitro, cyano, hydroxyl, oxo, cycloalkyl, trifluoromethoxy, trifluoromethyl, trifluoroethyl, amino, carboxyl, carbamoyl, mercapto, sulphamoyl, methyl, ethyl, methoxy, ethoxy, acetyl, acetoxy, methylamino, ethylamino, dimethylamino, diethylamino, N-methyl-N-ethylamino, acetylamino, N-methylcarbamoyl, N-ethylcarbamoyl, N,N-dimethylcarbamoyl, N,N-diethylcarbamoyl, N-methyl-N-ethylcarbamoyl, methylthio, ethylthio, methylsulphinyl, ethylsulphinyl, mesyl, ethylsulphonyl, methoxycarbonyl, ethoxycarbonyl, N-methylsulphamoyl, N-ethylsulphamoyl, N,N-dimethylsulphamoyl, N,N-diethylsulphamoyl, N-methyl-N-ethylsulphamoyl, aryl, and heterocyclyl.
  • In the definitions herein of R1, R2, R3, R4, R5, A, B and D, the carbon ranges for the groups alkyl, alkenyl, alkynyl, alkoxy, alkanoyl, alkanoyloxy, alkanoylamino, and the like include all ranges encompassed in the recited ranges C1-10 and C2-10. For example, in non-limiting fashion C1-10 and C2-10 include a disclosure of C1-6 and C1-3. In various embodiments, C1-10 carbon-chain containing groups such as C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl and so forth include the respective C1-6 and C1-3 shorter carbon-chains such as C1-6 alkyl, C1-3 alkyl, C2-6 alkenyl, C2-3 alkenyl, C2-6 alkynyl and C2-3 alkynyl.
  • In an embodiment when Ar is phenyl or 5- or 6-member heteroaryl, m is 0; in another embodiment, m is 1; in another embodiment, m is 2.
  • In the Tables that follow, examples are given with m=0 or m=1. When m=0, the entry in the R2 column reads H (hydrogen) to indicate that all substituents are H. When m=1, the entry in the R2 column gives the identity and position of the single non-hydrogen substituent.
  • In particular embodiments, the variables are further exemplified as follows:
      • each R4 is independently H, halo, hydroxyl, oxo, nitro, cyano, trifluoromethyl, trifluoromethoxy, amino, carboxyl, carbamoyl, sulphamoyl, C1-3 alkyl, C2-3 alkenyl, C2-3 alkynyl, C1-3 alkoxy, C1-3 alkanoyl, N—(C1-3 alkyl)amino, N,N—(C1-3 alkyl)2 amino, C1-3 alkanoylamino, N—(C1-3 alkyl)carbamoyl, N,N—(C1-3 alkyl)2 carbamoyl, C1-3 alkyl-S(O)a wherein a is 0, 1 or 2, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-3 alkyl)2sulphamoyl, imidazolyl, triazolyl, pyridinyl, imidazopyridinyl, pyrazolopyridinyl, imidazopyridazinyl, imidazopyrimidinyl, imidazopyrazinyl, aryl, cycloalkyl or heterocyclyl, wherein if R4 is not aryl, cycloalkyl or heterocyclyl, each R4 is optionally substituted by one or more B where such an optional substitution is chemically feasible, and if R4 is aryl, cycloalkyl or heterocyclyl, R4 is optionally further substituted by one or more R5 where such an optional substitution is chemically feasible;
      • each R5 is independently selected from the group consisting of halo, nitro, cyano, hydroxyl, oxo, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-3 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkoxy, C1-6 alkanoyl, C1-6 alkanoyloxy, N—(C1-6 alkyl)amino, N,N—(C1-6 alkyl)2amino, C1-6 alkanoylamino, N—(C1-6 alkyl)carbamoyl, N,N—(C1-6 alkyl)2carbamoyl, C1-6 alkyl-S(O)a wherein a is 0, 1 or 2, C1-6 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-6 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, aryl, aryloxy, arylthio, cycloalkyl, cycloalkyloxy, heterocyclyl, heterocyclyl(C═O)—, heterocyclyloxy and heterocyclylthio, wherein R5 is optionally substituted by one or more D where such an optional substitution is chemically feasible;
      • Ar is phenyl, 5-member heteroaryl, or 6-member heteroaryl, wherein the heteroaryl contains one or more heteroatoms selected from N, S and O; and
      • A, B and D are independently selected from halo, nitro, cyano, hydroxyl, oxo, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkoxy, C1-6 alkanoyl, C1-6 alkanoyloxy, N—(C1-6 alkyl)amino, N,N—(C1-6 alkyl)2amino, C1-6 alkanoylamino, N—(C1-6 alkyl)carbamoyl, N,N—(C1-6 alkyl)2carbamoyl, C1-6 alkyl-S(O)a wherein a is 0, 1 or 2, C1-6 alkoxycarbonyl, N—(C1-6 alkyl)sulphamoyl, N,N—(C1-6 alkyl)2sulphamoyl, H2NS(O)2NH—, N—(C1-6 alkyl)NHS(O)2NH—, N,N—(C1-6 alkyl)2NS(O)2NH—, aryl, aryloxy, arylthio, cycloalkyl, cycloalkyloxy, heterocyclyl, heterocyclyl(C═O)—, heterocyclyloxy and heterocyclylthio.
  • A compound of Formula (I) contains a divalent Cy1 linking a substituted or unsubstituted Cy2 to —Ar—CONH—R1. Each Ar, Cy1 and Cy2 can be optionally substituted with various substituents as defined as R2, R3 and R4, respectively. Formula (I) indicates that the attachment of substituents on Cy1, Cy2 and Ar rings is variable.
  • In particular embodiments, compounds are selected from those of Formulae (I-a), (I-b), (I-c), (I-d), (I-e), (I-f), (I-g), (I-h), (I-i), (I-j), (I-k), (I-l), (I-m), (I-n), (I-o), (I-p), (I-q), and (I-r) with substituents defined as in Formula (I):
  • Figure US20120045412A1-20120223-C00010
    Figure US20120045412A1-20120223-C00011
    Figure US20120045412A1-20120223-C00012
    Figure US20120045412A1-20120223-C00013
  • Compounds defined above are useful to inhibit HDACs. In one embodiment, therefore, a compound of the invention is used in inhibiting HDAC enzymes such as, for example, mammalian HDACs. More specifically, a compound of the invention can be used to treat or inhibit HDAC-mediated diseases or abnormalities.
  • In an embodiment of the compounds of Formulae (I), (I-a), (I-b), (I-c), (I-d), (I-e), (I-g), (I-h), (I-i), (I-j), (I-k), (I-l), (I-m), (I-n), (I-o), (I-p), (I-q), and (I-r), one or more (including all) of the substituents R1, R2, R3, R4 and R5 are further limited as follows:
  • R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, and R1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl. In particular embodiments, R1 is hydroxyl,
  • Figure US20120045412A1-20120223-C00014
    Figure US20120045412A1-20120223-C00015
    Figure US20120045412A1-20120223-C00016
  • m is 0, 1 or 2 and each R2 is independently fluoro, chloro, bromo, or methyl.
  • n is 0, 1 or 2 and each R3 is, if present, a non-hydrogen substituent selected independently from methyl, ethyl, bromo, and trifluoromethyl, or two R3 together form a spiro-ring on Cy1 selected from
  • Figure US20120045412A1-20120223-C00017
  • For example, compounds containing such a Spiro moiety include
  • Figure US20120045412A1-20120223-C00018
  • Each R4 is independently selected from H, chloro, hydroxyl, methyl, ethyl, propyl, acetyl, propanoyl, butanoyl, methoxy, ethoxy, methoxymethyl, ethoxyethyl, propoxyethyl, methoxyethoxy, trifluoromethyl, hydroxyethoxy, dimethylamino, diethylamino, dimethylaminomethyl, diethylaminomethyl, dimethylaminoethoxy, trifluoromethoxymethyl, trifluoroethoxymethyl, benzyl, phenylethyl, trifluoromethylphenylethyl, phenoxymethyl, fluorophenoxymethyl, phenylethylaminomethyl, benzylaminomethyl, triazinylmethyl, piperidinylmethyl, piperidinyloxy, trifluoromethylpiperidinylmethyl, pyridinyloxymethyl, pyridinylmethoxy, tetrahydropyrazinyloxy, methylpiperazinylmethyl, pyridyl, thienyl, furanyl, pyrimidyl, imidazolyl, pyridinyl, triazolyl, pyranyl, pyrazolyl, thiazolyl, thiadiazolyl, isothiazolyl, oxazolyl, isoxazoyl, pyrrolyl, pyridazinyl, pyrazinyl, quinolinyl, isoquinolinyl, benzofuranyl, dibenzofuranyl, dibenzothiophenyl, benzothienyl, indolyl, imidazopyridinyl, pyrazolopyridinyl, imidazopyridazinyl, imidazopyrimidinyl, imidazopyrazinyl, benzothiazolyl, benzooxazolyl, benzimidazolyl, isoindolyl, benzotriazolyl, purinyl, thianaphthenyl, 1-methylcyclopropyl, trifluoroethyl, methoxypropyl, N,N-dimethylaminopropyl, 1-carboxycyclopropyl, N,N-dimethylcarbamoylcyclopropyl, pyridin-2-ylmethyl, 5-trifluoromethylpyridin-2-ylmethyl, N,N-dimethylcarbamoyl, morpholinylcarbonyl, t-butylcarbamoyl, morpholinoethoxycarbonyl, benzoyl, picolinoyl, quinoxa-6-linylcarbonyl, cyclopropylcarbonyl, propionyl, methoxypropanoyl, N,N-dimethylaminopropanoyl, 5-trifluoromethylpyridin-2-yl, 5-chloropyridin-2-yl, 5-cyclopropylpyridin-2-yl, 5-chloropyrimidin-2-yl, 2-methoxyphenyl, 4-carboxyphenyl, N,N-dimethylcarbamoylphenyl, 2-chlorophenyl, 1-methylcyclopropoxycarbonyl, t-butoxycarbonyl, 2-trifluoromethylprop-2-oxycarbonyl, methylsulfonyl, trifluoroethylsulfonyl, 5-trifluoromethylpyridin-3-ylsulfonyl, pyridin-3-ylsulfonyl, phenylsulfonyl, cyclopropylsulfonyl, pyridin-2-yl, 5-trifluoromethylpyridin-2-yl, phenyl, and cyclopropyl; or
  • p is 2 or greater and two R4 groups are substituted at adjacent positions of Cy2 and form a 5- or 6-membered cyclic moiety to make a fused ring with Cy2, wherein the cyclic moiety can be carbocyclic or contain one or more heteroatoms selected from N, O and S; and the cyclic moiety is optionally substituted by one or more R5 where such an optional substitution is chemically feasible. Examples of such fused rings include, but are not limited to:
  • Figure US20120045412A1-20120223-C00019
  • wherein s is 0, 1, 2 or 3.
  • If R4 is not aryl, cycloalkyl or heterocyclyl, each R4 is optionally substituted by one or more B where such an optional substitution is chemically feasible, and if R4 is aryl, cycloalkyl or heterocyclyl, R4 is optionally further substituted by one or more R5 where such an optional substitution is chemically feasible.
  • R5 is independently selected from chloro, hydroxyl, oxo, methyl, ethyl, propyl, methoxy, ethoxy, methoxymethyl, ethoxyethyl, propoxyethyl, methoxyethoxy, trifluoromethyl, hydroxyethoxy, dimethylamino, diethylamino, dimethylaminomethyl, diethylaminomethyl, dimethylaminoethoxy, trifluoromethoxymethyl, trifluoroethoxymethyl, benzyl, phenylethyl, trifluoromethylphenylethyl, phenoxymethyl, fluorophenoxymethyl, phenylethylaminomethyl, benzylaminomethyl, triazinylmethyl, piperidinylmethyl, piperidinyloxy, trifluoromethylpiperidinylmethyl, pyridinyloxymethyl, pyridinylmethoxy, tetrahydropyrazinyloxy, methylpiperazinylmethyl, pyrrolidin-1-yl, pyrrolidin-2-yl, pyrrolidin-3-yl, pyrrolidin-1-ylmethyl, pyrrolidin-2-ylmethyl, pyrrolidin-3-ylmethyl, pyrrolidin-1-ylethoxy, pyrrolidin-2-ylethoxy, pyrrolidin-3-ylethoxy, imidazol-1-ylmethyl, imidazol-2-ylmethyl, imidazol-4-ylmethyl, imidazolidin-1-yl, imidazolidin-2-yl, imidazolidin-4-yl, imidazolidin-1-ylmethyl, imidazolidin-2-ylmethyl, imidazolidin-4-ylmethyl, imidazolin-1-yl, imidazolin-2-yl, imidazolin-4-yl, pyrazolidin-1-yl, pyrazolidin-3-yl, pyrazolidin-4-yl, pyrazolin-1-yl, pyrazolin-3-yl, pyrazolin-4-yl, piperidin-1-yl, piperidin-2-yl, piperidin-3-yl, piperidin-4-yl, piperidin-1-ylmethyl, piperidin-2-ylmethyl, piperidin-3-ylmethyl, piperidin-4-ylmethyl, piperazin-1-yl, piperazin-2-yl, piperazin-3-yl, morpholin-2-yl, morpholin-3-yl, morpholin-4-yl, morpholin-2-ylmethyl, morpholin-3-ylmethyl, morpholin-4-ylmethyl, morpholin-2-ylethoxy, morpholin-3-ylethoxy and morpholin-4-ylethoxy.
  • In various embodiments, the Cy1 linker and the —CONHR1 moiety are disposed about the phenyl ring of Formulae (I-a), (I-c) and (I-e) through (I-r) in either a 1,3-(meta) or a 1,4-(para) configuration. R2 can be attached to any ring position of the phenyl ring which is not occupied by the Cy1 linker and —CONHR1 moiety and such attachment includes 1,2-(ortho), 1,3-(meta) and 1,4-(para) configurations wherein the Cy1 linker is at position 1. In the Tables that follow, ortho-, meta- and para-configurations of R2 mean attachment to positions 2, 3 and 4 of the phenyl ring as shown in Formulas (I-a) and (I-c), respectively. Where R2 is an ortho-substitution (i.e., position 2), meta-CONHR1 moiety is intended to be at position 5.
  • In one embodiment, the invention provides a compound of Formula (I-a) and a pharmaceutically acceptable salt thereof:
  • Figure US20120045412A1-20120223-C00020
  • wherein Cy1, R1, R2, R3 and R4 are as defined above for various aspects of Formula (I).
  • In an embodiment of Formula (I-a), Cy1 is cyclopropylidene; R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; m is 0 or 1 and R2 is halo, C1-40 alkyl or haloalkyl; n is 0, 1 or 2 and each R3 is independently methyl, ethyl, bromo, trifluoromethyl; p is 2 and each R4 is independently selected from the group consisting of H, halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl and N,N—(C1-10 alkyl)2sulphamoyl, or p is 2 or greater and two R4 groups form a 5- or 6-membered cyclic moiety to make a fused ring with the thiazole ring (Cy2), wherein the cyclic moiety can contain one or more heteroatoms selected from N, O and S, wherein each R4 is optionally substituted by one or more B where such an optional substitution is chemically feasible.
  • Non-limiting examples of such compounds include compounds of Formula (I-a0) and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00021
  • wherein R6 and R7 are independently selected from the functional groups of R4 defined herein. Table 1 provides non-limiting examples of compounds of Formula (I-a0) where m is zero where R6 and R7 together can form a cyclic moiety to make a fused ring with the thiazole ring (Cy2), that fused ring is shown in the R6 and R7 columns of the table.
  • TABLE 1
    Examples of Formula (I-a0)
    Compound —CONHR1
    No. attachment R1 R6 R7
    a0-01 para —OH CH3— CH3C(O)—
    a0-02 para —OH
    Figure US20120045412A1-20120223-C00022
         		H
    a0-03 para —OH N-pyridin-2-ylaminomethyl H
    a0-04 para —OH pyridin-2-yloxymethyl H
    a0-05 para —OH
    Figure US20120045412A1-20120223-C00023
         		H
    a0-06 para —OH
    Figure US20120045412A1-20120223-C00024
         		H
    a0-07 para —OH
    Figure US20120045412A1-20120223-C00025
         		H
    a0-08 para —OH CH3— (CH3)2NC(O)—
    a0-09 para —OH
    Figure US20120045412A1-20120223-C00026
    a0-10 para —OH
    Figure US20120045412A1-20120223-C00027
    a0-11 para —OH
    Figure US20120045412A1-20120223-C00028
    a0-12 para —OH
    Figure US20120045412A1-20120223-C00029
    a0-13 para —OH
    Figure US20120045412A1-20120223-C00030
    a0-14 para —OH
    Figure US20120045412A1-20120223-C00031
    a0-15 para —OH
    Figure US20120045412A1-20120223-C00032
    a0-16 para —OH
    Figure US20120045412A1-20120223-C00033
    a0-17 para —OH
    Figure US20120045412A1-20120223-C00034
    a0-18 para —OH
    Figure US20120045412A1-20120223-C00035
    a0-19 para —OH
    Figure US20120045412A1-20120223-C00036
    a0-20 meta —OH CH3— CH3C(O)—
    a0-21 meta —OH
    Figure US20120045412A1-20120223-C00037
         		H
    a0-22 meta —OH N-pyridin-2-ylaminomethyl H
    a0-23 meta —OH pyridin-2-yloxymethyl H
    a0-24 meta —OH
    Figure US20120045412A1-20120223-C00038
         		H
    a0-25 meta —OH
    Figure US20120045412A1-20120223-C00039
         		H
    a0-26 meta —OH
    Figure US20120045412A1-20120223-C00040
         		H
    a0-27 meta —OH CH3— (CH3)2NC(O)—
    a0-28 meta —OH
    Figure US20120045412A1-20120223-C00041
    a0-29 meta —OH
    Figure US20120045412A1-20120223-C00042
    a0-30 meta —OH
    Figure US20120045412A1-20120223-C00043
    a0-31 meta —OH
    Figure US20120045412A1-20120223-C00044
    a0-32 meta —OH
    Figure US20120045412A1-20120223-C00045
    a0-33 meta —OH
    Figure US20120045412A1-20120223-C00046
    a0-34 meta —OH
    Figure US20120045412A1-20120223-C00047
    a0-35 meta —OH
    Figure US20120045412A1-20120223-C00048
    a0-36 meta —OH
    Figure US20120045412A1-20120223-C00049
    a0-37 meta —OH
    Figure US20120045412A1-20120223-C00050
    a0-38 meta —OH
    Figure US20120045412A1-20120223-C00051
    a0-39 para 2-aminophenyl CH3— CH3C(O)—
    a0-40 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00052
         		H
    a0-41 para 2-aminophenyl N-pyridin-2-ylaminomethyl H
    a0-42 para 2-aminophenyl pyridin-2-yloxymethyl H
    a0-43 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00053
         		H
    a0-44 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00054
         		H
    a0-45 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00055
         		H
    a0-46 para 2-aminophenyl CH3— (CH3)2NC(O)—
    a0-47 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00056
    a0-48 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00057
    a0-49 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00058
    a0-50 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00059
    a0-51 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00060
    a0-52 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00061
    a0-53 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00062
    a0-54 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00063
    a0-55 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00064
    a0-56 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00065
    a0-57 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00066
    a0-58 meta 2-aminophenyl CH3— CH3C(O)—
    a0-59 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00067
         		H
    a0-60 meta 2-aminophenyl N-pyridin-2-ylaminomethyl H
    a0-61 meta 2-aminophenyl pyridin-2-yloxymethyl H
    a0-62 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00068
         		H
    a0-63 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00069
         		H
    a0-64 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00070
         		H
    a0-65 meta 2-aminophenyl CH3— (CH3)2NC(O)—
    a0-66 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00071
    a0-67 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00072
    a0-68 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00073
    a0-69 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00074
    a0-70 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00075
    a0-71 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00076
    a0-72 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00077
    a0-73 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00078
    a0-74 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00079
    a0-75 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00080
    a0-76 meta 2-aminophenyl
    Figure US20120045412A1-20120223-C00081
    a0-77 para —OH H H
    a0-78 para 2-aminophenyl H H
    a0-79 para
    Figure US20120045412A1-20120223-C00082
         		H H
    a0-80 para
    Figure US20120045412A1-20120223-C00083
         		H H
    a0-81 para
    Figure US20120045412A1-20120223-C00084
         		H H
    a0-82 para 2-amino-5- H H
    fluorophenyl
    a0-83 para 2-aminophenyl CH3— isopropyl
    a0-84 para
    Figure US20120045412A1-20120223-C00085
         		CH3— isopropyl
    a0-85 para 2-aminophenyl CH3—
    Figure US20120045412A1-20120223-C00086
    a0-86 para 2-amino-5- fluorophenyl CH3—
    Figure US20120045412A1-20120223-C00087
    a0-87 para
    Figure US20120045412A1-20120223-C00088
         		CH3—
    Figure US20120045412A1-20120223-C00089
    a0-88 para
    Figure US20120045412A1-20120223-C00090
         		CH3—
    Figure US20120045412A1-20120223-C00091
    a0-89 para 2-aminophenyl CH3— CH3—
    a0-90 para
    Figure US20120045412A1-20120223-C00092
         		CH3— CH3—
    a0-91 para HO— pyrrolidin-1-ylmethyl H
    a0-92 para 2-aminophenyl pyrrolidin-1-ylmethyl H
    a0-93 para 2-amino-5- pyrrolidin-1-ylmethyl H
    fluorophenyl
    a0-94 para
    Figure US20120045412A1-20120223-C00093
         		pyrrolidin-1-ylmethyl H
    a0-95 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00094
         		H
    a0-96 para
    Figure US20120045412A1-20120223-C00095
    Figure US20120045412A1-20120223-C00096
         		H
    a0-97 para 2-aminophenyl morpholin-4-ylmethyl H
    a0-98 para
    Figure US20120045412A1-20120223-C00097
         		morpholin-4-ylmethyl H
    a0-99 para 2-aminophenyl ethoxy H
    a0-100 para
    Figure US20120045412A1-20120223-C00098
         		ethoxy H
    a0-101 para
    Figure US20120045412A1-20120223-C00099
         		ethoxy H
    a0-102 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00100
         		H
    a0-103 para 2-amino-5- fluorophenyl
    Figure US20120045412A1-20120223-C00101
         		H
    a0-104 para 2-aminophenyl H CH3—
    a0-105 para
    Figure US20120045412A1-20120223-C00102
         		H CH3—
    a0-106 para
    Figure US20120045412A1-20120223-C00103
         		H CH3—
    a0-107 para 2-aminophenyl H pyridin-3-yl
    a0-108 para
    Figure US20120045412A1-20120223-C00104
         		H pyridin-3-yl
    a0-109 para 2-aminophenyl H pyridin-3-yl
    a0-110 para 2-aminophenyl H 6-cyclopropyl
    pyridin-3-yl
    a0-111 para 2-aminophenyl CH3— H
    a0-112 para
    Figure US20120045412A1-20120223-C00105
         		cyclopropyl H
    a0-113 para 2-aminophenyl cyclopropyl H
    a0-114 para
    Figure US20120045412A1-20120223-C00106
         		CH3— CH3C(O)—
    a0-115 para 2-aminophenyl CH3— CH3C(O)—
    a0-116 para 2-amino-5- fluorophenyl
    Figure US20120045412A1-20120223-C00107
    a0-117 para
    Figure US20120045412A1-20120223-C00108
    Figure US20120045412A1-20120223-C00109
    a0-118 para
    Figure US20120045412A1-20120223-C00110
    Figure US20120045412A1-20120223-C00111
    a0-119 para
    Figure US20120045412A1-20120223-C00112
    Figure US20120045412A1-20120223-C00113
    a0-120 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00114
    a0-121 para
    Figure US20120045412A1-20120223-C00115
    Figure US20120045412A1-20120223-C00116
    a0-122 para
    Figure US20120045412A1-20120223-C00117
    Figure US20120045412A1-20120223-C00118
    a0-123 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00119
    a0-124 para 2-amino-5- fluorophenyl
    Figure US20120045412A1-20120223-C00120
    a0-125 para 2-aminophenyl
    Figure US20120045412A1-20120223-C00121
    a0-126 para 2-amino-5- fluorophenyl
    Figure US20120045412A1-20120223-C00122
    *wherein R6 and R7 form a cyclic moiety. The groups R6 and R7 are illustrated with the thiazolyl group (Cy2) to show their attachments to the thiazolyl ring.
  • In another embodiment of Formula (I-a), Cy1 is cyclopropylidene and the thiazole ring Cy2 is substituted with a fused aryl, cycloalkyl, or heterocyclyl ring. Also, R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; R2 is halo, alkyl or haloalkyl; m is 0 or 1 and R2 is halo, alkyl or haloalkyl; n is 0, 1 or 2 and each R3 is independently methyl, ethyl, bromo, trifluoromethyl; p is 1 or greater, wherein one and only one R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring; and the other R4, if present, are not aryl, cycloalkyl or heterocyclyl, optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. Compounds of this embodiment include, but are not limited to, compounds of the following formulae, where R6′, R7′, R8, R9, and R10 are independently selected from H and the functional groups of R5 defined herein:
  • Figure US20120045412A1-20120223-C00123
    Figure US20120045412A1-20120223-C00124
  • Non-limiting examples of compounds of Formula (I-a1) include the following compounds shown in Table 2 and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00125
  • TABLE 2
    Examples of Formula (I-a1).
    Com-
    pound —CONHR1
    No. attachment R1 R2 R4 R6′ R7′ R8 R9 R10
    a1- para —OH H H H H H H H
    01
    a1- meta —OH H H H H H H H
    02
    a1- para —OH H —CH3 H H H H H
    03
    a1- meta —OH H —CH3 H H H H H
    04
    a1- para 2-aminophenyl H H H H H H H
    05
    a1- meta 2-aminophenyl H H H H H H H
    06
    a1- para 2-aminophenyl H —CH3 H H H H H
    07
    a1- meta 2-aminophenyl H —CH3 H H H H H
    08
    a1- para 2-aminopyridin-3-yl H H H H H H H
    09
    a1- meta 2-aminopyridin-3-yl H H H H H H H
    10
    a1- para 2-aminopyridin-3-yl H —CH3 H H H H H
    11
    a1- meta 2-aminopyridin-3-yl H —CH3 H H H H H
    12
    a1- 13 para
    Figure US20120045412A1-20120223-C00126
         		H H H H H H H
    a1- 14 meta
    Figure US20120045412A1-20120223-C00127
         		H H H H H H H
    a1- 15 para
    Figure US20120045412A1-20120223-C00128
         		H —CH3 H H H H H
    a1- 16 meta
    Figure US20120045412A1-20120223-C00129
         		H —CH3 H H H H H
    a1- para 2-amino-6- H H H H H H H
    17 fluorophenyl
    a1- meta 2-amino-6- H H H H H H H
    18 fluorophenyl
    a1- para 2-amino-6- H —CH3 H H H H H
    19 fluorophenyl
    a1- meta 2-amino-6- H —CH3 H H H H H
    20 fluorophenyl
    a1- para 2-amino-6- ortho-F H H H H H H
    21 fluorophenyl
    a1- meta 2-amino-6- ortho-F H H H H H H
    22 fluorophenyl
    a1- para 2-amino-6- ortho-F —CH3 H H H H H
    23 fluorophenyl
    a1- meta 2-amino-6- ortho-F —CH3 H H H H H
    24 fluorophenyl
    a1- para —OH H H —CH3 H H H H
    25
    a1- meta —OH H H —CH3 H H H H
    26
    a1- para —OH H —CH3 —CH3 H H H H
    27
    a1- meta —OH H —CH3 —CH3 H H H H
    28
    a1- para 2-aminophenyl H H —CH3 H H H H
    29
    a1- meta 2-aminophenyl H H —CH3 H H H H
    30
    a1- para 2-aminophenyl H —CH3 —CH3 H H H H
    31
    a1- meta 2-aminophenyl H —CH3 —CH3 H H H H
    32
    a1- para 2-aminopyridin-3-yl H H —CH3 H H H H
    33
    a1- meta 2-aminopyridin-3-yl H H —CH3 H H H H
    34
    a1- para 2-aminopyridin-3-yl H —CH3 —CH3 H H H H
    35
    a1- meta 2-aminopyridin-3-yl H —CH3 —CH3 H H H H
    36
    a1- 37 para
    Figure US20120045412A1-20120223-C00130
         		H H —CH3 H H H H
    a1- 38 meta
    Figure US20120045412A1-20120223-C00131
         		H H —CH3 H H H H
    a1- 39 para
    Figure US20120045412A1-20120223-C00132
         		H —CH3 —CH3 H H H H
    a1- 40 meta
    Figure US20120045412A1-20120223-C00133
         		H —CH3 —CH3 H H H H
    a1- para 2-amino-6- H H —CH3 H H H H
    41 fluorophenyl
    a1- meta 2-amino-6- H H —CH3 H H H H
    42 fluorophenyl
    a1- para 2-amino-6- H —CH3 —CH3 H H H H
    43 fluorophenyl
    a1- meta 2-amino-6- H —CH3 —CH3 H H H H
    44 fluorophenyl
    a1- para 2-amino-6- ortho-F H —CH3 H H H H
    45 fluorophenyl
    a1- meta 2-amino-6- ortho-F H —CH3 H H H H
    46 fluorophenyl
    a1- para 2-amino-6- ortho-F —CH3 —CH3 H H H H
    47 fluorophenyl
    a1- meta 2-amino-6- ortho-F —CH3 —CH3 H H H H
    48 fluorophenyl
    a1- para —OH H H —CH3 —Cl H H H
    45
    a1- para —OH H H —CH3 H —Cl H H
    46
    a1- para —OH H H —CH3 H H —Cl H
    47
    a1- para —OH H H —CH3 H H H —Cl
    48
    a1- meta —OH H H —CH3 —Cl H H H
    49
    a1- meta —OH H H —CH3 H —Cl H H
    50
    a1- meta —OH H H —CH3 H H —Cl H
    51
    a1- meta —OH H H —CH3 H H H —Cl
    52
    a1- para 2-aminophenyl H H —CH3 —Cl H H H
    53
    a1- para 2-aminophenyl H H —CH3 H —Cl H H
    54
    a1- para 2-aminophenyl H H —CH3 H H —Cl H
    55
    a1- para 2-aminophenyl H H —CH3 H H H —Cl
    56
    a1- para 2-aminophenyl H H —CH3 —Cl H H H
    57
    a1- para 2-aminophenyl H H —CH3 H —Cl H H
    58
    a1- para 2-aminophenyl H H —CH3 H H —Cl H
    59
    a1- para 2-aminophenyl H H —CH3 H H H —Cl
    60
    a1- para 2-aminopyridin-3-yl H H —CH3 —Cl H H H
    61
    a1- para 2-aminopyridin-3-yl H H —CH3 H —Cl H H
    62
    a1- para 2-aminopyridin-3-yl H H —CH3 H H —Cl H
    63
    a1- para 2-aminopyridin-3-yl H H —CH3 H H H —Cl
    64
    a1- para 2-aminopyridin-3-yl H H —CH3 —Cl H H H
    65
    a1- para 2-aminopyridin-3-yl H H —CH3 H —Cl H H
    66
    a1- para 2-aminopyridin-3-yl H H —CH3 H H —Cl H
    67
    a1- para 2-aminopyridin-3-yl H H —CH3 H H H —Cl
    68
    a1- para —OH H H —CH3 —CF3 H H H
    69
    a1- para —OH H H —CH3 H —CF3 H H
    70
    a1- para —OH H H —CH3 H H —CF3 H
    71
    a1- para —OH H H —CH3 H H H —CF3
    72
    a1- para 2-aminophenyl H H —CH3 —CF3 H H H
    73
    a1- para 2-aminophenyl H H —CH3 H —CF3 H H
    74
    a1- para 2-aminophenyl H H —CH3 H H —CF3 H
    75
    a1- para 2-aminophenyl H H —CH3 H H H —CF3
    76
    a1- para —OH H H —CH3 —OCH3 H H H
    77
    a1- para —OH H H —CH3 H —OCH3 H H
    78
    a1- para —OH H H —CH3 H H —OCH3 H
    79
    a1- para —OH H H —CH3 H H H —OCH3
    80
    a1- para 2-aminophenyl H H —CH3 —OCH3 H H H
    81
    a1- para 2-aminophenyl H H —CH3 H —OCH3 H H
    82
    a1- para 2-aminophenyl H H —CH3 H H —OCH3 H
    83
    a1- para 2-aminophenyl H H —CH3 H H H —OCH3
    84
    a1- 85 para —OH H H H
    Figure US20120045412A1-20120223-C00134
         		H H H
    a1- 86 para —OH H H H H
    Figure US20120045412A1-20120223-C00135
         		H H
    a1- 87 para —OH H H H H H
    Figure US20120045412A1-20120223-C00136
         		H
    a1- 88 para —OH H H H H H H
    Figure US20120045412A1-20120223-C00137
    a1- 89 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00138
         		H H H
    a1- 90 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00139
         		H H
    a1- 91 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00140
         		H
    a1- 92 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00141
    a1- 93 para 2-aminophenyl ortho-F H H
    Figure US20120045412A1-20120223-C00142
         		H H H
    a1- 94 para 2-aminophenyl ortho-F H H H
    Figure US20120045412A1-20120223-C00143
         		H H
    a1- 95 para 2-aminophenyl ortho-F H H H H
    Figure US20120045412A1-20120223-C00144
         		H
    a1- 96 para 2-aminophenyl ortho-F H H H H H
    Figure US20120045412A1-20120223-C00145
    a1- 97 para 2-amino-6- fluorophenyl ortho-F H H
    Figure US20120045412A1-20120223-C00146
         		H H H
    a1- 98 para 2-amino-6- fluorophenyl ortho-F H H H
    Figure US20120045412A1-20120223-C00147
         		H H
    a1- 99 para 2-amino-6- fluorophenyl ortho-F H H H H
    Figure US20120045412A1-20120223-C00148
         		H
    a1- 100 para 2-amino-6- fluorophenyl ortho-F H H H H H
    Figure US20120045412A1-20120223-C00149
    a1- 101 meta 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00150
         		H H H
    a1- 102 meta 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00151
         		H H
    a1- 103 meta 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00152
         		H
    a1- 104 meta 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00153
    a1- 105 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00154
         		H H H
    a1- 106 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00155
         		H H
    a1- 107 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00156
         		H
    a1- 108 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00157
    a1- 109 para 2-amino-6- fluorophenyl ortho-F H H
    Figure US20120045412A1-20120223-C00158
         		H H H
    a1- 110 para 2-amino-6- fluorophenyl ortho-F H H H
    Figure US20120045412A1-20120223-C00159
         		H H
    a1- 111 para 2-amino-6- fluorophenyl ortho-F H H H H
    Figure US20120045412A1-20120223-C00160
         		H
    a1- 112 para 2-amino-6- fluorophenyl ortho-F H H H H H
    Figure US20120045412A1-20120223-C00161
    a1- 113 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00162
         		H H H
    a1- 114 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00163
         		H H
    a1- 115 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00164
         		H
    a1- 116 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00165
    a1- 117 para 2-amino-6- fluorophenyl ortho-F H H
    Figure US20120045412A1-20120223-C00166
         		H H H
    a1- 118 para 2-amino-6- fluorophenyl ortho-F H H H
    Figure US20120045412A1-20120223-C00167
         		H H
    a1- 119 para 2-amino-6- fluorophenyl ortho-F H H H H
    Figure US20120045412A1-20120223-C00168
         		H
    a1- 120 para 2-amino-6- fluorophenyl ortho-F H H H H H
    Figure US20120045412A1-20120223-C00169
    a1- 121 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00170
         		H H H
    a1- 122 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00171
         		H H
    a1- 123 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00172
         		H
    a1- 124 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00173
    a1- 125 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00174
         		H H H
    a1- 126 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00175
         		H H
    a1- 127 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00176
         		H
    a1- 128 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00177
    a1- 129 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00178
         		H H H
    a1- 130 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00179
         		H H
    a1- 131 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00180
         		H
    a1- 132 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00181
    a1- 133 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00182
         		H H H
    a1- 134 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00183
         		H H
    a1- 135 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00184
         		H
    a1- 136 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00185
    a1- 137 para 2-amino-5- fluorophenyl H H H
    Figure US20120045412A1-20120223-C00186
         		H H H
    a1- 138 para 2-amino-5- fluorophenyl H H H H
    Figure US20120045412A1-20120223-C00187
         		H H
    a1- 139 para 2-amino-5- fluorophenyl H H H H H
    Figure US20120045412A1-20120223-C00188
         		H
    a1- 140 para 2-amino-5- fluorophenyl H H H H H H
    Figure US20120045412A1-20120223-C00189
    a1- 141 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00190
         		H H H
    a1- 142 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00191
         		H H
    a1- 143 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00192
         		H
    a1- 144 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00193
    a1- 145 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00194
         		H H H
    a1- 146 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00195
         		H H
    a1- 147 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00196
         		H
    a1- 148 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00197
    a1- 149 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00198
         		H H H
    a1- 150 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00199
         		H H
    a1- 151 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00200
         		H
    a1- 152 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00201
    a1- 153 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00202
         		H H H
    a1- 154 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00203
         		H H
    a1- 155 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00204
         		H
    a1- 156 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00205
    a1- 157 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00206
         		H H H
    a1- 158 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00207
         		H H
    a1- 159 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00208
         		H
    a1- 160 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00209
    a1- 161 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00210
         		H H H
    a1- 162 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00211
         		H H
    a1- 163 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00212
         		H
    a1- 164 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00213
    a1- 165 para 2-aminophenyl H H H
    Figure US20120045412A1-20120223-C00214
         		H H H
    a1- 166 para 2-aminophenyl H H H H
    Figure US20120045412A1-20120223-C00215
         		H H
    a1- 167 para 2-aminophenyl H H H H H
    Figure US20120045412A1-20120223-C00216
         		H
    a1- 168 para 2-aminophenyl H H H H H H
    Figure US20120045412A1-20120223-C00217
    a1- para —OH H H —CH3 —F H H H
    169
    a1- para 2-aminophenyl H H —CH3 —F H H H
    170
    a1- para —OH H H —CH3 H H —Br H
    171
    a1- para 2-aminophenyl H H —CH3 H H —Br H
    172
    a1- 173 para —OH H H —CH3 H
    Figure US20120045412A1-20120223-C00218
         		H H
    a1- 174 para 2-aminophenyl H H —CH3 H
    Figure US20120045412A1-20120223-C00219
         		H H
    a1- 175 para —OH H H —CH3 H H
    Figure US20120045412A1-20120223-C00220
         		H
    a1- 176 para 2-aminophenyl H H —CH3 H H
    Figure US20120045412A1-20120223-C00221
         		H
    a1- 177 para —OH H H —CH3 H
    Figure US20120045412A1-20120223-C00222
         		H H
    a1- 178 para 2-aminophenyl H H —CH3 H
    Figure US20120045412A1-20120223-C00223
         		H H
    a1- 179 para —OH H H —CH3 H H
    Figure US20120045412A1-20120223-C00224
         		H
    a1- 180 para 2-aminophenyl H H —CH3 H H
    Figure US20120045412A1-20120223-C00225
         		H
    a1- 181 para —OH H H —CH3 H
    Figure US20120045412A1-20120223-C00226
         		H H
    a1- 182 para 2-aminophenyl H H —CH3 H
    Figure US20120045412A1-20120223-C00227
         		H H
    a1- 183 para —OH H H —CH3 H H
    Figure US20120045412A1-20120223-C00228
         		H
    a1- 184 para 2-aminophenyl H H —CH3 H H
    Figure US20120045412A1-20120223-C00229
         		H
    a1- 185 para —OH H H —CH3 H
    Figure US20120045412A1-20120223-C00230
         		H H
    a1- 186 para 2-aminophenyl H H —CH3 H
    Figure US20120045412A1-20120223-C00231
         		H H
    a1- 187 para —OH H H —CH3 H
    Figure US20120045412A1-20120223-C00232
         		H H
    a1- 188 para 2-aminophenyl H H —CH3 H
    Figure US20120045412A1-20120223-C00233
         		H H
    a1- 189 para —OH H H —CH3 H
    Figure US20120045412A1-20120223-C00234
         		H H
    a1- 190 para 2-aminophenyl H H —CH3 H
    Figure US20120045412A1-20120223-C00235
         		H H
    a1- 191 para —OH H H —CH3 H H
    Figure US20120045412A1-20120223-C00236
         		H
    a1- 192 para 2-aminophenyl H H —CH3 H H
    Figure US20120045412A1-20120223-C00237
         		H
    a1- 193 para —OH H H —CH3 H
    Figure US20120045412A1-20120223-C00238
         		H H
    a1- 194 para 2-aminophenyl H H —CH3 H
    Figure US20120045412A1-20120223-C00239
         		H H
    a1- para —OH H H —CH3 H H —OCH3 H
    195
    a1- para 2-aminophenyl H H —CH3 H H —OCH3 H
    196
    a1- para —OH H H —CF3 H H —OCH3 H
    197
    a1- para 2-aminophenyl H H —CF3 H H —OCH3 H
    198
    a1- 199 para —OH H H —CH3 H
    Figure US20120045412A1-20120223-C00240
         		H H
    a1- 200 para 2-aminophenyl H H —CH3 H
    Figure US20120045412A1-20120223-C00241
         		H H
  • In particular embodiments of Formulae (I-a2) to (I-a6), the groups R1, R4, R6′, R7′, R8, R9 and R10 can be selected to have the same combination of substituents given in the table for Compounds a1-01 to a1-200 where such combinations are chemically feasible.
  • In yet another embodiment of Formula (I-a), Cy1 is cyclopropylidene and Cy2 is substituted by R4 being a monocyclic aryl, cycloalkyl or heterocyclyl. Further, R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; R2 is halo, alkyl or haloalkyl; m is 0 or 1 and R2 is halo, alkyl or haloalkyl; n is 0, 1 or 2 and each R3 is independently methyl, ethyl, bromo, trifluoromethyl; p is 1 or greater; and one and only one R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring while other R4, if present, are not aryl, cycloalkyl, or heterocyclyl. When R4 is a ring, R4 is optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above.
  • Compounds of this embodiment include, but are not limited to, the following formulae where the groups R6′, R7′, R8, R9, and R10 are independently selected from H and the functional groups of R5 defined herein:
  • Figure US20120045412A1-20120223-C00242
    Figure US20120045412A1-20120223-C00243
  • Non-limiting examples of Formulae (I-a7), (I-a8), (I-a9), (I-a11), and (I-a12) include the following compounds and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00244
    Figure US20120045412A1-20120223-C00245
    Figure US20120045412A1-20120223-C00246
  • Table 3 provides non-limiting examples of compounds of Formula (I-a10) where m is zero and R4, R6′, R7′, and R10 are H, as shown in Structure (A10).
  • Figure US20120045412A1-20120223-C00247
  • TABLE 3
    Examples of Structure (A10).
    Compound
    No. R1 R8
    a10-01 HO— H
    a10-02 2-aminophenyl H
    a10-03 2-amino-5-fluorophenyl H
    a10-04
    Figure US20120045412A1-20120223-C00248
         		H
    a10-05
    Figure US20120045412A1-20120223-C00249
         		H
    a10-06 HO— Cl—
    a10-07 2-aminophenyl Cl—
    a10-08 HO— pyrrolidin-1-yl
    a10-09 2-aminophenyl pyrrolidin-1-yl
    a10-10 HO— 2-methoxy-
    ethoxy
    a10-11 2-aminophenyl 2-methoxy-
    ethoxy
    a10-12 HO— piperazin-1-yl
    a10-13 2-aminophenyl piperazin-1-yl
    a10-14 HO— 4-methyl-
    piperazin-1-yl
    a10-15 2-aminophenyl 4-methyl-
    piperazin-1-yl
    a10-16 HO— 4-cyclopropyl-
    piperazin-1-yl
    a10-17 2-aminophenyl 4-cyclopropyl-
    piperazin-1-yl
  • In an embodiment of Formula (I-a), Cy1 is cyclobutylidene, cyclopentylidene, cyclohexylidene or cycloheptylidene; R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; m is 0 or 1 and R2 is halo, alkyl or haloalkyl; n is 0, 1 or 2 and each R3 is independently methyl, ethyl, bromo, trifluoromethyl; p is 0, 1 or 2 and each R4 is independently selected from the group consisting of halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl and N,N—(C1-10 alkyl)2sulphamoyl, wherein each R4 is optionally substituted by one or more B where such an optional substitution is chemically feasible. In a particular embodiment, Cy1 is cyclopentylidene.
  • Non-limiting examples of such compounds include compounds of Formula (I-a′0) and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00250
  • wherein q is 2, 3, 4 or 5; R1 and R2 are as defined above; and R6 and R7 are selected from groups R4. In specific embodiments, R1, R2, R6 and R7 can be selected to have the same combination of substituents given in the table for Compounds a0-01 to a0-126.
  • In another embodiment of Formula (I-a), Cy1 is cyclobutylidene, cyclopentylidene, cyclohexylidene or cycloheptylidene and Cy2 is substituted with a fused ring R4. Further, R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; R2 is halo, alkyl or haloalkyl; m is 0 or 1 and R2 is halo, alkyl or haloalkyl; n is 0, 1 or 2 and each R3 is independently methyl, ethyl, bromo, trifluoromethyl; p is 1 or greater; and one and only one R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. In a particular embodiment, Cy1 is cyclopentylidene.
  • Non-limiting examples of such compounds include compounds of Formulae (I-a′1) to (I-a′6) and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00251
    Figure US20120045412A1-20120223-C00252
  • where the groups R6′, R7′, R8, R9, and R10 are independently selected from H and the functional groups of R5 defined herein, and wherein q is 2, 3, 4 or 5. In particular embodiments, for each value of q, the groups R1, R2, R4, R6′, R7′, R8, R9 and R10 are selected to have the same combination of substituents given in the table for Compounds a1-01 to a1-200. Non-limiting examples of such compounds include the following compounds and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00253
  • In yet another embodiment of Formula (I-a), Cy1 is cyclobutylidene, cyclopentylidene, cyclohexylidene or cycloheptylidene and Cy2 is substituted with a monocyclic ring. Further, R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; R2 is halo, alkyl or haloalkyl; m is 0 or 1 and R2 is halo, alkyl or haloalkyl; n is 0, 1 or 2 and each R3 is independently methyl, ethyl, bromo, trifluoromethyl; p is 1 or greater and one and only one R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring and R4 is optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. In a particular embodiment, Cy1 is cyclopentylidene.
  • Non-limiting examples of such compounds include compounds of Formulae (I-a′7) to (I-a′12) and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00254
    Figure US20120045412A1-20120223-C00255
  • where the groups R6′, R7′, R8, R9, and R10 are independently selected from H and the functional groups of R5 defined herein and q is 2, 3, 4, or 5. In various embodiments, the groups R1, R4, R6′, R7′, R8, R9 and R10 are selected to have the same combination of substituents as those of Formulae (I-a7), (I-a8), (I-a9), (I-a10), (I-a11), and (I-a12). Non-limiting examples of such compounds include the following compounds and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00256
  • In a further embodiment of Formula (I-a), Cy1 is heterocycloalkylidene; R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; R2 is halo, alkyl or haloalkyl; m is 0 or 1 and R2 is halo, alkyl or haloalkyl; n is 0, 1 or 2 and each R3 is independently methyl, ethyl, bromo, trifluoromethyl; p is 0, 1 or 2 and each R4 is independently selected from the group consisting of halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2-amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl and N,N—(C1-10 alkyl)2sulphamoyl, wherein each R4 is optionally substituted by one or more R5 where such an optional substitution is chemically feasible. In a particular embodiment, Cy1 is
  • Figure US20120045412A1-20120223-C00257
  • Non-limiting examples of such compounds include compounds of Formula (I-a″0) and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00258
  • wherein R6 and R7 are independently selected from groups R4; q is 2, 3, 4 or 5 and each Q is independently —CH2— or a heteroatom selected from —NH—, —O— and —S—, and when Q is methylene (—CH2—) or imino (—NH—), Q is optionally substituted with a group R3. In various embodiments, Q adjacent the 1-position is not a heteroatom. In particular embodiments, q is 2, 3, 4 or 5; each Q is independently —CH2— or a heteroatom selected from —NH—, —O— and —S—. In a particular embodiment, Cy1 is
  • Figure US20120045412A1-20120223-C00259
  • Table 4 provides non-limiting examples of compounds of Formula (I-a″0) where m is zero, q is four, and Q is oxygen at the 4-position, as shown in Structure (A″0):
  • Figure US20120045412A1-20120223-C00260
  • TABLE 4
    Examples of Structure (A″0).
    Compound
    No. R1 R6 R7
    a″0-01 2-aminophenyl CH3— CH3C(O)—
    a″0-02 2-aminophenyl
    Figure US20120045412A1-20120223-C00261
         		H
    a″0-03 2-aminophenyl N-pyridin-2-ylaminomethyl H
    a″0-04 2-aminophenyl pyridin-2-yloxymethyl H
    a″0-05 2-aminophenyl
    Figure US20120045412A1-20120223-C00262
         		H
    a″0-06 2-aminophenyl
    Figure US20120045412A1-20120223-C00263
         		H
    a″0-07 2-aminophenyl
    Figure US20120045412A1-20120223-C00264
         		H
    a″0-08 2-aminophenyl CH3— (CH3)2NC(O)—
    a″0-09 —OH H H
    a″0-10 2-aminophenyl H H
    a″0-11
    Figure US20120045412A1-20120223-C00265
         		H H
    a″0-12
    Figure US20120045412A1-20120223-C00266
         		H H
    a″0-13
    Figure US20120045412A1-20120223-C00267
         		H H
    a″0-14
    Figure US20120045412A1-20120223-C00268
         		H H
    a″0-15 2-aminophenyl CH3— isopropyl
    a″0-16
    Figure US20120045412A1-20120223-C00269
         		CH3— isopropyl
    a″0-17 2-aminophenyl CH3—
    Figure US20120045412A1-20120223-C00270
    a″0-18 2-amino-5-fluorophenyl CH3—
    Figure US20120045412A1-20120223-C00271
    a″0-19
    Figure US20120045412A1-20120223-C00272
         		CH3—
    Figure US20120045412A1-20120223-C00273
    a″0-20
    Figure US20120045412A1-20120223-C00274
         		CH3—
    Figure US20120045412A1-20120223-C00275
    a″0-21 2-aminophenyl CH3— CH3—
    a″0-22
    Figure US20120045412A1-20120223-C00276
         		CH3— CH3—
    a″0-23 HO— pyrrolidin-1-ylmethyl H
    a″0-24 2-aminophenyl pyrrolidin-1-ylmethyl H
    a″0-25 2-amino-5-fluorophenyl pyrrolidin-1-ylmethyl H
    a″0-26
    Figure US20120045412A1-20120223-C00277
         		pyrrolidin-1-ylmethyl H
    a″0-27 2-aminophenyl
    Figure US20120045412A1-20120223-C00278
         		H
    a″0-28
    Figure US20120045412A1-20120223-C00279
    Figure US20120045412A1-20120223-C00280
         		H
    a″0-29 2-aminophenyl morpholin-4-ylmethyl H
    a″0-30
    Figure US20120045412A1-20120223-C00281
         		morpholin-4-ylmethyl H
    a″0-31 2-aminophenyl ethoxy H
    a″0-32
    Figure US20120045412A1-20120223-C00282
         		ethoxy H
    a″0-33
    Figure US20120045412A1-20120223-C00283
         		ethoxy H
    a″0-34 2-aminophenyl
    Figure US20120045412A1-20120223-C00284
         		H
    a″0-35 2-amino-5-fluorophenyl
    Figure US20120045412A1-20120223-C00285
         		H
    a″0-36 2-aminophenyl H CH3—
    a″0-37
    Figure US20120045412A1-20120223-C00286
         		H CH3—
    a″0-38
    Figure US20120045412A1-20120223-C00287
         		H CH3—
    a″0-39 2-aminophenyl H pyridin-3-yl
    a″0-40
    Figure US20120045412A1-20120223-C00288
         		H pyridin-3-yl
    a″0-41 2-aminophenyl H pyridin-3-yl
    a″0-42 2-aminophenyl H 6-cyclopropyl-
    pyridin-3-yl
    a″0-43 2-aminophenyl CH3— H
    a″0-44
    Figure US20120045412A1-20120223-C00289
         		cyclopropyl H
    a″0-45 2-aminophenyl cyclopropyl H
    a″0-46
    Figure US20120045412A1-20120223-C00290
         		CH3— CH3C(O)—
    a″0-47 2-aminophenyl CH3— CH3C(O)—
    a″0-48 2-aminophenyl
    Figure US20120045412A1-20120223-C00291
    a″0-49 2-aminophenyl
    Figure US20120045412A1-20120223-C00292
    a″0-50 2-aminophenyl
    Figure US20120045412A1-20120223-C00293
    a″0-51 2-aminophenyl
    Figure US20120045412A1-20120223-C00294
    a″0-52 2-aminophenyl
    Figure US20120045412A1-20120223-C00295
    a″0-53 2-aminophenyl
    Figure US20120045412A1-20120223-C00296
    a″0-54 2-aminophenyl
    Figure US20120045412A1-20120223-C00297
    a″0-55 2-aminophenyl
    Figure US20120045412A1-20120223-C00298
    a″0-56 2-aminophenyl
    Figure US20120045412A1-20120223-C00299
    a″0-57 2-aminophenyl
    Figure US20120045412A1-20120223-C00300
    a″0-58 2-aminophenyl
    Figure US20120045412A1-20120223-C00301
    a″0-59 2-amino-5-fluorophenyl
    Figure US20120045412A1-20120223-C00302
    a″0-60
    Figure US20120045412A1-20120223-C00303
    Figure US20120045412A1-20120223-C00304
    a″0-61
    Figure US20120045412A1-20120223-C00305
    Figure US20120045412A1-20120223-C00306
    a″0-62
    Figure US20120045412A1-20120223-C00307
    Figure US20120045412A1-20120223-C00308
    a″0-63 2-aminophenyl
    Figure US20120045412A1-20120223-C00309
    a″0-64
    Figure US20120045412A1-20120223-C00310
    Figure US20120045412A1-20120223-C00311
    a″0-65
    Figure US20120045412A1-20120223-C00312
    Figure US20120045412A1-20120223-C00313
    *wherein R6 and R7 form a cyclic moiety. The groups R6 and R7 are illustrated with the thiazolyl group (Cy2) to show their attachments to the thiazolyl ring.
  • In another embodiment of Formula (I-a), Cy1 is heterocycloalkylidene; R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; R2 is halo, alkyl or haloalkyl; m is 0 or 1 and R2 is halo, alkyl or haloalkyl; n is 0, 1 or 2 and each R3 is independently methyl, ethyl, bromo, trifluoromethyl; p is 1 or greater; and one and only one R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring and R4 is optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. Compounds of this embodiment include, but are not limited to, the following formulae and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00314
    Figure US20120045412A1-20120223-C00315
  • where the groups R6′, R7′, R8, R9, and R10 are independently selected from H and the functional groups of R5 defined herein. In non-limiting examples of such compounds, q is 2, 3, 4 or 5 and each Q is independently —CH2— or a heteroatom selected from —NH—, —O— and —S—, and when Q is methylene (—CH2—) or imino (—NH—), Q is optionally substituted with a group R3. In various embodiments, Q adjacent the 1-position is not a heteroatom. In particular embodiments, q is 2, 3, 4 or 5; each Q is independently —CH2— or a heteroatom selected from —NH—, —O— and —S—; and the groups R1, R4, R6′, R7′, R8, R9 and R10 can be selected to have the same combination of substituents given in the table for Compounds a1-01 to a1-200. In a particular embodiment, Cy1 is
  • Figure US20120045412A1-20120223-C00316
  • In yet another embodiment of Formula (I-a), Cy1 is heterocycloalkylidene; and one and only one R4 is a monocyclic group. Further, R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R1 is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; R2 is halo, alkyl or haloalkyl; m is 0 or 1 and R2 is halo, alkyl or haloalkyl; n is 0, 1 or 2 and each R3 is independently methyl, ethyl, bromo, trifluoromethyl; p is 1 or greater; and one and only one R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring and R4 is optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. Heterocycloalkylidene-containing compounds of this embodiment include, but are not limited to, those of the following formulae and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00317
    Figure US20120045412A1-20120223-C00318
  • wherein q is 2, 3, 4 or 5; each Q is independently —CM2— or a heteroatom selected from —NH—, —O— and —S—; wherein R1, R2, and R4 are as defined for various embodiments above, and wherein R6′, R7′, R8, R9, and R10 are selected from H and the functional groups of R5 defined herein. In various embodiments, the groups R1, R4, R6′, R7′, R8, R9 and R10 are selected to have the same combination of substituents as those of Formulae (I-a7), (I-a8), (I-a9), (I-a11), and (I-a12). In a particular embodiment, Cy1 is
  • Figure US20120045412A1-20120223-C00319
  • Table 5 provides non-limiting examples of compounds of Formula (I-a″10) where m is zero and R4, R6′, R7′, and R10 are H, as shown in Structure (A″10):
  • Figure US20120045412A1-20120223-C00320
  • TABLE 5
    Example of Structure (A″10).
    Compound
    No. R1 R8
    a″10-01 HO— H
    a″10-02 2-aminophenyl H
    a″10-03 2-amino-5-fluorophenyl H
    a″10-04
    Figure US20120045412A1-20120223-C00321
         		H
    a″10-05
    Figure US20120045412A1-20120223-C00322
         		H
    a″10-06 HO— Cl—
    a″10-07 2-aminophenyl Cl—
    a″10-08 HO— pyrrolidin-1-yl
    a″10-09 2-aminophenyl pyrrolidin-1-yl
    a″10-10 HO— 2-methoxy-ethoxy
    a″10-11 2-aminophenyl 2-methoxy-ethoxy
    a″10-12 HO— piperazin-1-yl
    a″10-13 2-aminophenyl piperazin-1-yl
    a″10-14 HO— 4-methylpiperazin-
    1-yl
    a″10-15 2-aminophenyl 4-methylpiperazin-
    1-yl
    a″10-16 HO— 4-cyclopropyl-
    piperazin-1-yl
    a″10-17 2-aminophenyl 4-cyclopropyl-
    piperazin-1-yl
  • In one embodiment, the invention provides a compound of Formula (I-b) and a pharmaceutically acceptable salt thereof:
  • Figure US20120045412A1-20120223-C00323
  • wherein Cy1, R1, R2, R3 and R4 are as defined above for various aspects of Formula (I).
  • In an embodiment of Formula (I-b), Cy1 is cyclopropylidene; and R4 is independently selected from the group consisting of H, halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10, alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl and N,N—(C1-10 alkyl)2sulphamoyl, wherein each R4 is optionally substituted by one or more B where such an optional substitution is chemically feasible. Non-limiting examples of such compounds include compounds of Formula (I-b0) and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00324
  • wherein R6 and R7 are selected from groups R4.
    In various embodiments, m is 0 and —CONH—R1 is attached to the thiophene ring position adjacent the S atom. Illustratively, the groups R1, R6 and R7 are selected to have the same combination of substituents given in the table for Compounds a0-01 to a0-126.
  • In an embodiment of Formula (I-b), Cy1 is cyclopropylidene; and R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring and R4 is optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. Compounds of this embodiment include, but are not limited to, the following formulae:
  • Figure US20120045412A1-20120223-C00325
    Figure US20120045412A1-20120223-C00326
  • where the groups R6′, R7′, R8, R9, and R10 are independently selected from H and the functional groups of R5 defined herein. In non-limiting embodiments, m is 0 and —CONH—R1 is attached to the thiophene at a ring position adjacent to the S atom. In various embodiments, the groups R1, R4, R6′, R7′, R8, R9 and R10 are selected to have the same combination of substituents given in the table for Compounds a1-01 to a1-200.
  • In an embodiment of Formula (I-b), Cy1 is cyclopropylidene; and one and only one R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. Compounds of this embodiment include, but are not limited to, those of the following formulae:
  • Figure US20120045412A1-20120223-C00327
    Figure US20120045412A1-20120223-C00328
  • where the groups R6′, R7′, R8, R9, and R10 are independently selected from H and the functional groups of R5 defined herein. In particular embodiments, m is 0 and —CONH—R1 is attached to the thiophene ring position adjacent the S atom. In various embodiments, the groups R1, R4, R6′, R7′, R8, R9 and R10 are selected to have the same combination of substituents as those of Compounds a7-01 through a12-04. That is, Compounds b7-01 through b12-04 are like a7-01 through a12-04, except the former have thiophene where the latter have phenyl.
  • In one embodiment, the invention provides a compound of Formula (I-c) and a pharmaceutically acceptable salt thereof:
  • Figure US20120045412A1-20120223-C00329
  • wherein Cy1, R1, R2, R3 and R4 are as defined above for various aspects of Formula (I).
  • In an embodiment of Formula (I-c), Cy1 is cyclopropylidene; and R4 is independently selected from the group consisting of H, halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl and N,N—(C1-10 alkyl)2sulphamoyl, wherein each R4 is optionally substituted by one or more B where such an optional substitution is chemically feasible. Non-limiting examples of such compounds include the following compounds and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00330
  • wherein R1 and R2 are as defined above; and R11, R12 and R13 are independently selected from R4 defined herein.
  • In an embodiment of Formula (I-c), Cy1 is cyclopropylidene; and one and only one R4 is aryl, cycloalkyl or heterocycloalkyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. Compounds of this embodiment include, but are not limited to, the following formulae:
  • Figure US20120045412A1-20120223-C00331
    Figure US20120045412A1-20120223-C00332
  • wherein p is 2; and R6′, R7′, R8, R9 and R10 are selected from H and groups R5. In specific embodiments, R1, R2, R6′, R7′, R8, R9 and R10 are selected to have the same combination of substituents given in the table for Compounds a1-01 to a1-200.
  • In an embodiment of Formula (I-c), Cy1 is cyclopropylidene; and R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. Compounds of this embodiment include, but are not limited to, the following formulae:
  • Figure US20120045412A1-20120223-C00333
    Figure US20120045412A1-20120223-C00334
  • where the groups R6′, R7′, R8, R9, and R10 are independently selected from H and the functional groups of R5 defined herein. In various embodiments, groups R4 are H. In various embodiments, —C(O)NHR1 is attached to the phenyl ring at a position para to cyclopropylidene. In illustrative embodiments, the groups R1, R2, R6′, R7′, R8, R9 and R10 are selected to have the same combination of substituents as those of Compounds a7-01 through a12-04. That is, Compounds c7-01 through c12-04 are like a7-01 through a12-04, except the former have pyrimidine where the latter have thiazole.
  • In one embodiment, the invention provides a compound of Formula (I-d) and a pharmaceutically acceptable salt thereof:
  • Figure US20120045412A1-20120223-C00335
  • wherein Cy1, R1, R2, R3 and R4 are as defined above for various aspects of Formula (I).
  • In an embodiment of Formula (I-d), Cy1 is cyclopropylidene; and R4 is independently selected from the group consisting of H, halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl and N,N—(C1-10 alkyl)2sulphamoyl, wherein each R4 is optionally substituted by one or more B where such an optional substitution is chemically feasible. Non-limiting examples of such compounds include the following compounds and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00336
  • wherein R1 and R2 are as defined above; and R11, R12 and R13 are independently selected from the functional groups of R4 defined herein.
  • In an embodiment of Formula (I-d), Cy1 is cyclopropylidene; and one and only one R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a fused ring and R4 is optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. Compounds of this embodiment include, but are not limited to, the following formulae:
  • Figure US20120045412A1-20120223-C00337
    Figure US20120045412A1-20120223-C00338
  • where the groups R6′, R7′, R8, R9, and R10 are independently selected from H and the functional groups of R5 defined herein. In various embodiments, m is 0; both groups R4 are H; and/or —CONH—R1 is attached to the thiophene ring position adjacent the S atom. In illustrative embodiments, the groups R1, R6′, R7′, R8, R9 and R10 are selected to have the same combination of substituents given in the table for each of Compounds a1-01 to a1-200.
  • In an embodiment of Formula (I-d), Cy1 is cyclopropylidene; and one and only one R4 is aryl, cycloalkyl or heterocyclyl, wherein aryl, cycloalkyl or heterocyclyl is a monocyclic ring optionally further substituted by one or more R5 where such an optional substitution is chemically feasible; and R5 is as defined above. Compounds of this embodiment include, but are not limited to, the following formulae:
  • Figure US20120045412A1-20120223-C00339
    Figure US20120045412A1-20120223-C00340
  • where the groups R6′, R7′, R8, R9, and R10 are independently selected from H and the functional groups of R5 defined herein. In particular embodiments, m is 0; both groups R4 are H; and/or —CONH—R1 is attached to the thiophene ring position adjacent the S atom. In various embodiments, the groups R1, R6′, R7′, R8, R9 and R10 are selected to have the same combination of substituents as those of Compounds a7-01 through a12-04. That is, Compounds d7-01 through d12-04 are like a7-01 through a12-04, except the former have pyrimidine and thiophene where the latter have thiazole and phenyl, respectively.
  • In one embodiment, the invention provides a compound selected from the group consisting of Formulae (I-e), (I-f), (I-g), (I-h), (I-i), (I-j), (I-k), (I-1), (I-m), (I-n), (I-o), (I-p), (I-q), and (I-r), and a pharmaceutically acceptable salt thereof:
  • Figure US20120045412A1-20120223-C00341
    Figure US20120045412A1-20120223-C00342
    Figure US20120045412A1-20120223-C00343
  • wherein Cy1, R1, R2, R3 and R4 are as defined above for various aspects of Formula (I).
  • Non-limiting examples of such compounds include the following compounds and pharmaceutically acceptable salts thereof:
  • Figure US20120045412A1-20120223-C00344
    Figure US20120045412A1-20120223-C00345
    Figure US20120045412A1-20120223-C00346
    Figure US20120045412A1-20120223-C00347
    Figure US20120045412A1-20120223-C00348
    Figure US20120045412A1-20120223-C00349
  • In yet another embodiment, the invention provides a compound of Formula (II) or a pharmaceutically acceptable salt thereof:
  • Figure US20120045412A1-20120223-C00350
  • wherein Cy1, R1, R6 and R7 are as defined above.
  • In particular embodiments, the variables are further exemplified as follows:
      • Cy1 is cyclopropylidene, cyclopentylidene or tetrahydropyran-4,4-diylidene;
      • R1 is hydroxyl or phenyl substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, wherein R1 is optionally further substituted with one or more groups selected from amino, halo, alkyl, haloalkyl, cycloalkyl, heterocycloalkyl, aryl and heteroaryl;
      • R6 is C1-3 alkyl, C2-3 alkenyl, C2-3 alkynyl, C1-3 alkoxy, C1-3 alkanoyl, imidazopyridinyl or pyridinyl, wherein if R6 is not imidazopyridinyl or pyridinyl, R6 is optionally substituted by one or more B where such an optional substitution is chemically feasible, and if R6 is imidazopyridinyl or pyridinyl, R6 is optionally further substituted by one or more R5;
      • R7 is C1-3 alkyl, C2-3 alkenyl, C2-3 alkynyl, C1-3 alkoxy or C1-3 alkanoyl;
      • R5 is independently selected from the group consisting of halo, nitro, cyano, hydroxyl, oxo, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkoxy, C1-6 alkanoyl, C1-6 alkanoyloxy, N—(C1-6 alkyl)amino, N,N—(C1-6 alkyl)2amino, C1-6 alkanoylamino, N—(C1-6 alkyl)carbamoyl, N,N—(C1-6 alkyl)2carbamoyl, C1-6 alkyl-S(O)a wherein a is 0, 1 or 2, C1-6 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-6 alkyl)sulphamoyl, N,N—(C1-6 alkyl)2sulphamoyl, aryl, aryloxy, arylthio, cycloalkyl, cycloalkyloxy, heterocyclyl, heterocyclyl(C═O)—, heterocyclyloxy and heterocyclylthio; wherein R5 is optionally substituted by one or more D where such an optional substitution is chemically feasible;
      • B and D are independently selected from halo, nitro, cyano, hydroxyl, oxo, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkoxy, C1-6 alkanoyl, C1-6 alkanoyloxy, N—(C1-6 alkyl)amino, N,N—(C1-6 alkyl)2amino, C1-6 alkanoylamino, N—(C1-6 alkyl)carbamoyl, N,N—(C1-6 alkyl)2carbamoyl, C1-6 alkyl-S(O)a wherein a is 0, 1 or 2, C1-6 alkoxycarbonyl, N—(C1-6 alkyl)sulphamoyl, N,N—(C1-6 alkyl)2sulphamoyl, H2NS(O)2NH—, N—(C1-6 alkyl)NHS(O)2NH—, N,N—(C1-6 alkyl)2NS(O)2NH—, aryl, aryloxy, arylthio, cycloalkyl, cycloalkyloxy, heterocyclyl, heterocyclyl(C═O)—, heterocyclyloxy and heterocyclylthio.
  • Examples of such compounds include, but are not limited to:
  • Figure US20120045412A1-20120223-C00351
  • and pharmaceutically acceptable salts thereof.
    • Compound Preparation
  • A compound of the present invention such as those of Formulae (I), (I-a), (I-b), (I-c), (I-d), (I-e), (I-f), (I-g), (I-h), (I-i), (I-j), (I-k), (I-l), (I-m), (I-n), (I-o), (I-p), (I-q), and (I-r) can be prepared according to the schemes described below, but it shall be appreciated that modifications of the illustrated process or other processes can also be used.
  • Figure US20120045412A1-20120223-C00352
  • Cycloalkylidene linked HDAC inhibitors can be synthesized according to Scheme 1, showing preparation of inhibitors 8a and 8b where Ar is phenyl and where Cy2 is a substituted thiazole. In Scheme 1, α-cyano-p-methylbenzoic acid ester 1 is reacted with dibromide 2 (q is an integer from 1 to 6) to form cyano intermediate 3a, which is in turn reacted with hydrogen sulfide to yield thioamide compound 4a. Thiazole intermediate 6 is prepared by reacting thioamide 4a with α-bromo carbonyl compound 5. Substituents R6 and R7 on intermediate 5 are selected from H and the functional groups of R4 defined herein and become the substituents on ring Cy2 of the inhibitors. Thiazole intermediate 6 is then reacted with 1,2-diamino aryl compound 7a to provide arylamide HDAC inhibitor 8a or with NH2OH to provide hydroxamate inhibitor 8b.
  • Scheme 1 can be genericized with respect to the group Ar of the HDAC inhibitors. In scheme 2, inhibitors 8′ are synthesized from starting esters 1′ by way of thioamide intermediate 4′.
  • Figure US20120045412A1-20120223-C00353
  • Inhibitors with heterocycloalkylidene linkers Cy1 can be synthesized analogously to Schemes 1 and 2 by reaction of starting compounds 1 or 1′ with a dibromoether 2′ as in Scheme 3. Scheme 3 illustrates the synthesis when Ar in the inhibitor is a 1,4-substituted phenyl, with Cy1 taken as position 1.
  • Figure US20120045412A1-20120223-C00354
  • In one embodiment, intermediate 5 is prepared containing a ring substituent at R′ according to Scheme 4. A first synthetic route begins with the reaction of an aminopyridine b with a chlorodiketone a to make an acyl imidazopyridine c, which is brominated to bromoketone 5.
  • Figure US20120045412A1-20120223-C00355
  • A second route to bromoketone 5 is given in Scheme 5, where the imidazopyridine is formed first and is then acylated and brominated.
  • Figure US20120045412A1-20120223-C00356
  • In Scheme 5, the imidazo ring is elaborated first, and then subjected to acylation to add the ketone side chain and group R4, both of which will become part of the thiazole in subsequent synthetic steps. In one sense, this affords more flexibility in the choices of R6 and R4 than does Scheme 4. At the same time, the reaction of aminopyridine b with chloroketone or chloroaldehyde d occurs under similar conditions as in Scheme 4, and is permissive of the same broad range of substituents R7, R8, R9, and R10 on the aminopyridine starting material b.
  • Pyrimidine inhibitor compounds can be made as in Scheme 6.
  • Figure US20120045412A1-20120223-C00357
  • Cyanocycloalkylidene 3a is converted to urea compound 4a and reacted with aminoketone 5 to give ester 6. Ester 6 is converted to arylamide 8a or to hydroxamate 8b.
  • Alternatively, pyrimidine compounds can be synthesized according to Scheme 7, where intermediate 6 is alkylated to form cycloalkylidene 3 before reaction to the hydroxamate or arylamide. Alternatively, intermediate 6 of Scheme 7 can be alkylated as in Scheme 3 to form a heterocycloalkylidene analog of intermediate 3 (not shown).
  • Figure US20120045412A1-20120223-C00358
  • The compounds of the present invention inhibit histone deacetylase and are useful to treat or ameliorate diseases mediated directly or indirectly by HDAC. Therefore, another aspect of the present invention is to provide a pharmaceutical composition comprising an effective amount of one or more compounds as described above.
  • In one embodiment of the invention, a pharmaceutical composition is provided comprising, in addition to one or more compounds described herein, at least one pharmaceutically-acceptable diluent, adjuvant, excipient, or carrier. The composition can take any suitable form for the desired route of administration. Where the composition is to be administered orally, any suitable orally deliverable dosage form can be used, including without limitation tablets, capsules (solid- or liquid-filled), powders, granules, syrups and other liquids, elixirs, inhalants, troches, lozenges, and solutions. Injectable compositions or iv infusions are also provided in the form of solutions, suspensions, and emulsions.
  • A pharmaceutical composition according to the present invention may contain one or more additional therapeutic agents, for example, to increase the efficacy or decrease the side effects. In some embodiments, accordingly, a pharmaceutical composition further contains one or more additional therapeutic agents selected from active ingredients useful to treat or inhibit diseases mediated directly or indirectly by HDAC. Examples of such active ingredients are, without limitation, agents to treat or inhibit cancer, Huntington's disease, cystic fibrosis, liver fibrosis, renal fibrosis, pulmonary fibrosis, skin fibrosis, Rheumatoid arthritis, diabetes, stroke, amyotrophic lateral sclerosis, cardiac hypertrophy, heart failure or Alzheimer's disease.
  • In an embodiment, an additional therapeutic agent to be included is an anti-cancer agent. Examples of an anti-cancer agent include, but are not limited to, alkylating agents such as cyclophosphamide, dacarbazine, and cisplatin; antimetabolites such as methotrexate, mercaptopurine, thioguanine, fluorouracil, and cytarabine; plant alkaloids such as vinblastine, and paclitaxel; antitumor antibiotics such as doxorubicin, bleomycin, and mitomycin; hormones/antihormones such as prednisone, tamoxifen, and flutamide; other types of anticancer agents such as asparaginase, rituximab, trastuzumab, imatinib, retinoic acid and derivatives, colony-stimulating factors, amifostine, camptothecin, topotecan, thalidomide analogs such as lenalidomide, CDK inhibitor and other HDAC inhibitor such as histone deacetylase 1 inhibitors, histone deacetylase 2 inhibitors, histone deacetylase 3 inhibitors, histone deacetylase 4 inhibitors, histone deacetylase 5 inhibitors, histone deacetylase 6 inhibitors, histone deacetylase 7 inhibitors, histone deacetylase 8 inhibitors, histone deacetylase 9 inhibitors, histone deacetylase 10 inhibitors, and histone deacetylase 11 inhibitors.
  • Yet another aspect of the present invention is to provide a method of inhibiting or treating diseases arising from abnormal cell proliferation and/or differentiation in animal, comprising administering to said animal a therapeutically effective amount of one or more compounds according to the present invention. In one embodiment, the method of inhibiting or treating disease comprises administering to an animal a composition comprising an effective amount of one or more compounds of the invention and a pharmaceutically-acceptable carrier. The composition to be administered may further contain a therapeutic agent such as anti-cancer agent.
  • A method of the present invention is particularly suitable for use with humans, but may be used with other animals, particularly mammals, such as, for example, non-human primates, companion animals, farm animals, laboratory animals, and wild and zoo animals.
  • A method of the present invention is particularly useful to treat diseases mediated directly or indirectly by HDAC since the compounds of the present invention have inhibitory activity against those molecules. In some embodiments, therefore, a method of the present invention is used in inhibiting or treating HDAC-mediated diseases. Examples of such disease include, but are not limited to, cell proliferative diseases such as cancer, autosomal dominant disorders such as Huntington's disease, genetic related metabolic disorder such as cystic fibrosis, fibrosis such as liver fibrosis, renal fibrosis, pulmonary fibrosis and skin fibrosis, autoimmune diseases such as Rheumatoid arthritis, diabetes, acute and chronic neurological diseases such as stroke, hypertrophy such as cardiac hypertrophy, heart failure including congestive heart failure, amyotrophic lateral sclerosis, and Alzheimer's disease.
  • In an embodiment, a method according to the present invention is applied to a patient with cancer, cystic fibrosis, or pulmonary fibrosis. In some embodiments, a method using a compound according to the present invention is used to treat or inhibit a cancer selected from bladder cancer, breast cancer, colon and rectal cancer, endometrial cancer, kidney (renal cell) cancer, leukemia, lung cancer, melanoma, non-Hodgkin's lymphoma, pancreatic cancer, prostate cancer, skin cancer (non-melanoma), and thyroid cancer.
    • EXAMPLES
  • The following examples are merely illustrative, and do not limit this disclosure in any way.
    • Example 1 N-(2-amino-phenyl)-4-{1-[4-(2-methyl-imidazo[1,2-a]pyridin-3-yl)-thiazol-2-yl]-cyclopropyl}-benzamide
  • Figure US20120045412A1-20120223-C00359
  • Preparation of Intermediate (hereinafter “Int”) 6: Int-1 (1.92 g, 11.01 mmol) and 1,2-dibromoethane (4.76 mL, 55.04 mmol) were combined in tetrahydrofuran (THF) (40 mL) and cooled down to 0° C. To this solution, potassium bis(trimethylsilyl)-amide (0.5M, 48.3 mL, 24.21 mmol) was added in a period of 15 minutes and then warmed up to room temperature and stirred overnight. The reaction mixture was partitioned between ethyl acetate and water. The organic phase were washed with aqueous solution of NaHCO3 and brine, dried with MgSO4 and evaporated under vacuum. The crude product was purified by chromatography on silica gel (25% EtOAc/hexanes) to afford Int-2 (1.55 g, 7.71 mmol, 70.33%). To a solution of Int-2 in MeOH (50 mL) was added Et3N (2.5 mL). H2S was bubbled into the solution. The reaction vessel was stirred at room temperature for 4 days. The reaction mixture was evaporated and purified by silica gel chromatography (33% EtOAc/hexanes) to Int-3 (1.23 g, 5.22 mmol, 67%). 1-(2-methyl-imidazo[1,2-c]pyridine-3-yl)-ethanone (0.25 g, 1.44 mmol) was dissolved in a mixture of HBr/AcOH (33%) (2 mL) and AcOH (4 mL). A solution of Br2 (0.1 mL) in CHCl3 (3 mL) was added at room temperature. After 10 minutes of stirring, the reaction mixture was completed. The solids were filtered out, dissolved in EtOAc, washed out with aqueous NaHCO3, Na2S2O3, dried with MgSO4 and evaporated in vacuum to afford Int-4 (0.32 g, 1.26 mmol, 86%). Int-4 (0.11 g, 0.42 mmol) and Int-3 (0.10 g, 0.42 mmol) were dissolved in EtOH (10 mL) and heated to reflux under stirring for 20 minutes. The reaction mixture was evaporated under vacuum. The crude Int-5 (0.15 g) was used in the next step without further purification. Int-5 (0.15 g, 0.38 mmol) was dissolved in MeOH (6 mL) and treated with an aqueous solution of 1N NaOH (2 mL). The reaction mixture was stirred for 2 hours and then 1N aqueous HCl was added until reaching pH 5. The suspension was filtered out to have Int-6 (0.14 g, 0.36 mmol, 94%).
  • Preparation of Compound 7: A solution of Int-6 (0.10 g, 0.26 mmol), 1,2-phenylenediamine (57.67 mg, 0.53 mmol), hydroxybenzotriazole (HOBt) (36.03 mg, 0.26 mmol), EDC (102 mg, 0.53 mmol), in N-methyl-2-pyrrolidone (NMP) (5 mL) was stirred for 30 minutes and then N,N-diisopropylethylamine (DIPEA) (74 μL) was added and the mixture was stirred for 2 hours. Water was added to precipitate the product. The solids were filtered and washed with more water, and dried on a filter to afford Compound 7 (0.1 g, 0.21 mmol, 80%). 1H-NMR (dimethyl sulfoxide (DMSO)) δ: 8.90 (d, J=6.8 Hz, 1H), 8.04 (d, J=8.4 Hz, 2H), 7.71 (d, J=8 Hz, 2H), 7.53-7.50 (m, 3H), 7.34 (t, J=7.2 Hz, 1H), 7.21 (d, J=7.6 Hz, 1H), 7.09 (t, J=7.2 Hz, 1H), 6.98-6.91 (m, 2H), 6.78 (t, J=8.4 Hz, 1H), 2.55 (s, 3H), 1.91-1.88 (m, 2H), 1.61-1.58 (m, 2H). MS m/z: 466 (MH+).
    • Example 2 N-hydroxy-4-{1-[4-(2-methyl-imidazo[1,2-a]pyridin-3-yl)-thiazol-2-yl]-cyclopropyl}-benzamide
  • Figure US20120045412A1-20120223-C00360
  • Int-6 of Example 1 (0.24 g, 0.64 mmol), PyBOP (0.39 g, 0.76 mmol), NH2OTBS (0.37 g, 2.56 mmol) and DIPEA (0.22 mL, 1.28 mmol) were mixed in NMP (5 mL) and stirred for 2 hours at room temperature. After the reaction was completed, 1N HCl 1 mL was added to the reaction mixture and stirred overnight. Once the hydrolysis was done, preparative high performance liquid chromatography (HPLC) purification was performed to obtain Compound 8. 1H-NMR (DMSO) δ: 11.22 (s, 1H), 8.82 (d, J=6.8 Hz, 1H), 8.44 (s, 1H), 7.76 (d, J=8.2 Hz, 2H), 7.20-7.12 (m, 3H), 7.49 (d, J=8.8 Hz, 1H), 7.23 (t, J=6.8, 1H), 6.91 (t, J=6.1 Hz, 1H), 2.46 (s, 3H), 1.78-1.72 (m, 2H), 1.53-1.47 (m, 2H), m/z=390.12
    • Example 3 4-[1-(5-Acetyl-4-methyl-thiazol-2-yl)-cyclopropyl]-N-(2-amino-phenyl)-benzamide
  • Figure US20120045412A1-20120223-C00361
  • 3-Chloro-pentane-2,-4-dione (24, 0.37 mmol) and Int-1 (50 mg, 0.3719 mmol) were dissolved in MeOH (1 mL) and heated in the microwave to 120° C. for 30 minutes. The reaction mixture was evaporated and extracted with water and EtOAc. The organic phase were dried with MgSO4 and evaporated under vacuum. The crude product Int-2 was used without further purification for ester hydrolysis. The same procedure to get Int-6 and Int-7 of Example 1 was used to synthesize Compound 4 from Int-2: 1H-NMR (MeOD) δ: 8.30 (d, J=8.0 Hz, 2H), 7.64 (d, J=8.4 Hz, 2H), 7.20 (d, J=8.0 Hz, 1H), 7.08 (t, J=7.96 Hz, 1H), 6.92 (d, J=7.6 Hz, 1H), 6.78 (t, J=7.4 Hz, 1H), 2.62 (s, 3H), 2.41 (s, 3H), 1.88-1.84 (m, 2H), 1.58-1.54 (m, 2H). MS m/z: 392 (MH+).
    • Example 4 2-(1-(4-(2-aminophenylcarbamoyl)phenyl)cyclopropyl)-N,N-4-trimethylthiazole-5-carboxamide
  • Figure US20120045412A1-20120223-C00362
  • Int-1 (200 mg, 0.85 mmol) and 2-chloro-N,N-dimethyl-3-oxo-butyramide 2-chloro-N,N-dimethyl-3-oxo-butyramide (0.46 mL, 1.70 mmol) were dissolved in MeOH (3 mL), and DIPEA (0.3 mL, 1.70 mmol) was added. The mixture was heated in the microwave for 30 minutes at 90° C. The reaction mixture was evaporated and extracted with water and EtOAc and saturated aqueous solution of NaHCO3. The organic phase was dried with MgSO4 and evaporated under vacuum. The crude product Int-2 was used without further purification for hydrolysis. The same procedure to get Int-6 and Int-7 of Example 1 was used to synthesize Compound 4 from Int-2. 1H-NMR (MeOD) δ: 8.05 (d, J=6.4 Hz, 2H), 7.62 (d, J=8.0 Hz, 2H), 7.10 (d, J=7.6 Hz, 1H), 7.05 (t, J=7.6 Hz, 1H), 6.95 (d, J=7.6 Hz, 1H), 6.78 (t, J=7.2 Hz, 1H), 3.05 (s, 6H), 2.32 (s, 3H), 1.90-1.86 (m, 2H), 1.62-1.58 (m, 2H). MS m/z: 421 (MH+).
    • Example 5 N-(2-Amino-phenyl)-4-[1-(4-pyridin-3-yl-thiazol-2-yl)-cyclopropyl]-benzamide
  • Figure US20120045412A1-20120223-C00363
  • Int-2 (0.2 g, 16.51 mmol) was dissolved in a mixture of HBr/AcOH 33% (2 mL) and AcOH (4 mL). 93.3 μL Br2 (1.1 equivalents (eq)) in chloroform (3 mL) was added slowly to the solution at room temperature. After 5 minutes the crystals in suspension were filtered out and worked out with water and EtOAc. The organic phase was dried with MgSO4 and evaporated under vacuum. The crude product was used without further purification for next step. The procedure to synthesize Int-5 of Example 1 was followed to synthesize Int-4 but using Int-3. The same procedure to get Int-6 and Int-7 of Example 1 was used to synthesize Compound 6 from Int-4. 1H-NMR (DMSO) δ: 9.66 (s, 1H), 9.08 (s, 1H), 8.48 (m, 1H), 8.20 (d, J=8.4 Hz, 1H), 7.95 (s, 1H), 7.92 (d, J=8.0 Hz, 2H), 7.60 (d, J=8.4 Hz, 2H), 7.40-7.44 (m, 1H), 7.13 (d, J=7.6 Hz, 1H), 6.92 (t, J=7.20 Hz, 1H), 6.72 (d, J=7.6 Hz 1H), 6.55 (t, J=7.2 Hz, 1H), 4.85 (s, 1H), 1.79-1.75 (m, 2H), 1.52-1.48 (m, 2H). MS m/z: 413 (MH+).
    • Examples 6 and 7 Example 6 N-(2-Amino-phenyl)-4-[1-(4-pyridin-3-yl-thiazol-2-yl)-cyclopentyl]-benzamide Example 7 N-(2-Amino-phenyl)-4-{1-[4-(2-methyl-imidazo[1,2-c]pyridin-3-yl)-thiazol-2-yl]-cyclopentyl}-benzamide
  • Figure US20120045412A1-20120223-C00364
  • The same procedure to get Int-2 and Int-3 of Example 1 was used to synthesize Int-3. Then the procedure to get Int-5 of Example 1 was followed for the synthesis of Int-4 and Int-7 but using 2-bromo-1-pyridin-3-yl-ethanone and 2-bromo-1-(2-methyl-imidazo[1,2-a]pyridin-3-yl)-ethanone. Following the procedure to get Int-6 of Example 1, Int-5 and Int-8 were synthesized.
  • Preparation of Compounds 6 and 9: The same procedure to get Int-6 and Compound 7 of Example 1 was used to synthesize Compound 6 and Compound 9 from Int-5 and Int-8, respectively. Compound 6: 1H-NMR (DMSO) δ: 9.58 (s, 1H), 8.82 (d, J=6.8 Hz, 1H), 7.79 (d, J=8.4 Hz, 2H), 7.75 (d, J=8.0 Hz 2H), 7.50 (d, J=7.6 Hz, 1H), 7.32 (t, J=7.0 Hz, 1H), 7.12 (d, =7.2 Hz, 1H), 6.98-6.90 (m, 2H), 6.74 (d, J=7.6 Hz, 1H), 6.52 (t, J=7.2 Hz, 1H), 4.80 (s, 2H), 2.82-2.74 (m, 2H), 2.34-2.30 (m, 2h), 1.84-1.78 (m, 4H). MS m/z: 494 (MH+). Compound 9: 1H-NMR (DMSO) δ: 9.60 (s, 1H), 9.18 (s, 1H), 8.48 (d, J=8.0 Hz, 1H), 8.23 (d, J=8.4 Hz, 1H), 8.18 (s, 1H), 7.95 (d, J=8.4 Hz, 2H), 7.59 (d, J=8.2, 2H), 7.43 (t, J=7.6 Hz, 1H), 7.18 (d, J=8.0 Hz, 1H), 6.95 (t, J=7.2 Hz, 1H), 6.78 (d, J=7.6 Hz, 1H), 6.49 (t, J=7.2 Hz, 1H), 2.72-2.80 (m, 2H), 2.32-2.20 (m, 2H), 1.80-1.75 (m, 4H), 1.80-1.75 (m, 4H). MS m/z: 441 (MH+).
    • Examples 8 and 9 Example 8 N-(2-Amino-phenyl)-4-[4-(4-pyridin-3-yl-thiazol-2-yl)-tetrahydro-pyran-4-yl]-benzamide Example 9 N-(2-Amino-phenyl)-4-{4-[4-(2-methyl-imidazo[1,2-a]pyridin-3-yl)-thiazol-2-yl]-tetrahydro-pyran-4-yl}-benzamide
  • Figure US20120045412A1-20120223-C00365
  • Preparation of Int-3: The procedure to get Int-2 of Example 1 was followed to synthesize Int-2 and Int-3 but using 1-bromo-2-(2-bromo-ethoxy)-ethane.
  • Preparation of Compounds 6 and 9: The procedure to get Int-5 of Example 1 was followed for the synthesis of Int-4 and Int-7 but using 2-bromo-1-pyridin-3-yl-ethanone and 2-bromo-1-(2-methyl-imidazo[1,2-a]pyridin-3-yl)-ethanone. The same procedure to get Int-6 and Compound 7 of Example 1 was used to synthesize Compound 6 and Compound 9 from Int-4 and Int-7, respectively. Compound 6: 1H-NMR (DMSO) δ: 9.58 (s, 1H), 9.18 (s, 1H), 8.54 (d, J=8.0 Hz, 1H), 8.28 (d, J=8.4 Hz, 1H), 8.21 (s, 1H), 7.9 (d, J=8.4 Hz, 2H), 7.6 (d, J=8.0, 2H), 7.42 (t, J=7.4 Hz, 1H), 7.10 (d, J=7.0 Hz, 1H), 6.95 (t, J=7.2 Hz, 1H), 6.70 (d, J=7.6 Hz, 1H), 6.55 (t, J=7.2 Hz, 1H), 4.82 (s, 2H), 3.78-3.65 (m, 2H), 3.68-3.60 (m, 2H), 2.70-2.62 (m, 2H), 2.42-2.38 (m, 2H). MS m/z: 457 (MH+). Compound 9: 1H-NMR (DMSO) δ: 9.60 (s, 1H), 8.84 (d, J=6.4 Hz, 1H), 7.96 (d, J=8.2 Hz, 2H), 7.82 (s, 1H), 7.65 (d, J=8.0 Hz, 2H), 7.56 (d, J=7.8 Hz, 1H), 7.32 (t, =7.6 Hz, 1H), 7.18 (d, J=7.0 Hz, 1H), 7.0-6.92 (m, 2H), 6.76 (d, J=7.0 Hz, 1H), 6.58 (t, J=7.2 Hz, 1H), 4.88 (s, 2H), 3.75-3.65 (m, 4h), 2.78-2.65 (m, 2H), 2.58-2.50 (m, 2H). MS m/z: 510 (MH+).
    • Example 10 2-(1-(4-(2-aminophenylcarbamoyl)phenyl)cyclopropyl)-N-isopropylthiazole-4-carboxamide
  • Figure US20120045412A1-20120223-C00366
  • 3-Bromo-2-oxo-propionic acid (142 mg, 0.85 mmol) and Int-1 (100 mg, 0.4255 mmol) were dissolved in dimethylformamide (DMF). DIPEA (0.15 mL, 0.84 mmol) was added and the whole mixture heated in microwave at 100° C. for 80 minutes. The reaction mixture was evaporated and extracted with EtOAc, water, and saturated aqueous solution of NaHCO3. The organic phase was dried with MgSO4 and evaporated under vacuum. The crude product Int-2 was used without further purification for ester hydrolysis. p-TsOH was added in excess to a solution of Int-2 (100 mg, 0.31 mmol) in MeOH and heated in microwave for 30 minutes at 80° C. The reaction mixture was evaporated and extracted with EtOAc, water and a saturated aqueous solution of NaHCO3. The organic phase was dried with MgSO4 and evaporated to yield Int-3. A solution of Int-3 (0.2 g, 0.85 mmol), isopropylamine (0.1 g, 1.70 mmol), HOBt (0.32 g, 0.85), and DIPEA (0.28 mL, 1.70 mmol) were dissolved in DMF (3 mL) and stirred at room temperature for 2 hours. The reaction mixture was crushed out with water and saturated solution of NaHCO3 to the solution to have pure Int-4. This compound was used without further purification for next step. The same procedure to get Int-6 and Compound 7 of Example 1 was used to synthesize Compound 6 from Int-4. 1H-NMR (MeOD) δ: 8.03 (d, J=6.4 Hz, 2H), 7.91 (s, 1H), 7.64 (d, J=8.0 Hz, 2H), 7.25 (d, J=8.0 Hz, 1H), 7.16 (t, J=7.6 Hz, 1H), 7.02 (d, J=7.2 Hz, 1H), 6.93 (t, J=7.6 Hz, 1H), 1.88-1.82 (m, 2H), 1.59-1.53 (m, 2H), 1.27 (s, 3H), 1.25 (s, 3H). MS m/z: 421 (MH+).
    • Example 11 N-(2-amino-phenyl)-4-[1-(4,5,6,7-tetrahydro-benzothiazol-2-yl)-cyclopropyl]-benzamide
  • Figure US20120045412A1-20120223-C00367
  • 2-Chloro-cyclohexanone (0.5 mL, 8.52 mmol) and Int-1 (0.5 g, 2.13 mmol) were dissolved in DMF and (0.72 mL, 4.26 mmol) of DIPEA was added. The whole mixture heated in microwave at 120° C. for 10 minutes. The reaction mixture was evaporated and extracted with EtOAc, water, and saturated aqueous solution of NaHCO3. The organic phase was dried with MgSO4 and evaporated under vacuum. The crude product Int-2 was used without further purification for dehydration. The same procedures to get Int-3 of Example 3 and Int-6 and Compound 7 of Example 1 were used to synthesize Compound 5 from Int-2. 1H-NMR (MeOD) δ: 7.95 (d, J=8.2 Hz, 2H), 7.50 (d, J=8.4 Hz, 2H), 7.2 (d, J=7.6 Hz, 1H), 7.10 (d, J=7.2 Hz, 1H), 7.88 (d, J=7.2 Hz, 1H), 6.78 (t, J=7.4 Hz, 1H), 2.70-2.65 (m, 4H), 1.70-1.65 (m, 4H), 1.50-1.42 (m, 2H). MS m/z: 390 (MO.
    • Examples 12, 13 and 14 Example 12 Ethyl-2-(1-(4-(2-aminophenylcarbamoyl)phenyl)cyclopropyl)-6,7-dihydrothiazolo[5,4-e]pyridine-5(4R)-carboxylate Example 13 N-(2-amino-phenyl)-4-[1-(4,5,6,7-tetrahydro-thiazolo[5,4-e]pyridin-2-yl)-cyclopropyl]-benzamide Example 14 tert-butyl 2-(1-(4-(2-aminophenylcarbamoyl)phenyl)cyclopropyl)-6,7-dihydrothiazolo[5,4-e]pyridine-5(4H)-carboxylate
  • Figure US20120045412A1-20120223-C00368
  • Preparation of Compound 5: 3-Bromo-4-oxo-piperidine-1-carboxylic acid ethyl ester (1.06 g, 4.24 mmol) and Int-1 (500 mg, 2.12 mmol) were dissolved in DMF. DIPEA (0.72 mL, 4.24 mmol) was added and the whole mixture heated in microwave at 75° C. for 60 minutes. The reaction mixture was extracted with EtOAc, water, and saturated aqueous solution of NaHCO3. The organic phase were dried with MgSO4 and evaporated under vacuum to yield Int-2. The procedures to get Int-3 of Example 3 and Int-6 and Compound 7 of Example 1 were followed in order to synthesize Int-3, Int-4 and Compound 5, respectively. Compound 5: 1H-NMR (DMSO) δ: 9.62 (s, 1H), 7.95 (d, J=6.4 Hz, 2H), 7.45 (d, J=8.4 Hz, 2H), 7.05 (d, J=7.6 Hz, 1H), 6.92 (t, J=7.2 Hz, 1H), 6.65 (d, J=7.6 Hz, 1H), 6.52 (t, J=7.2 Hz, 1H), 4.82 (s, 2H), 4.42 (s, 2H), 4.02-3.98 (m, 2H), 3.62-3.58 (m, 2H), 2.66-2.60 (m, 2H), 2.58-2.52 (m, 2H), 1.39-1.32 (m, 2H), 1.08-1.05 (m, 2H). MS m/z: 463 (MH+).
  • Preparation of Compound 6: Int-5 (0.2 g, 0.43 mmol) was added in MeOH (3 mL) and treated with an aqueous solution of 3.5N NaOH (1 mL). The reaction mixture was stirred overnight at 50° C. and then 1N of aqueous HCl was added until reaching a neutral pH. The reaction mixture was extracted with EtOAc and water. The organic phase dried over MgSO4 and evaporated. Further purification was done to have Compound 6. 1H-NMR (DMSO) δ: 9.62 (s, 1H), 8.15 (s, 1H), 7.92 (d, J=8.4 Hz, 2H), 7.48 (d, J=8.2 Hz, 2H), 7.10 (d, J=7.6 Hz, 1H), 6.90 (t, J=7.0 Hz, 1H), 6.72 (d, J=7.2 Hz, 1H), 6.55 (t, J=7.0 Hz, 1H), 4.85 (s, 2H), 3.70-3.66 (m, 2H), 2.90-2.85 (m, 2H), 2.55-2.50 (m, 2H), 1.55-1.50 (m, 2H), 1.35-1.32 (m, 2H). MS m/z: 391 (MH+).
  • Preparation of Compound 9: Int-7 (0.2 mg, 0.52 mmol) was dissolved in MeOH and treated with a 2.5 equivalents of an aqueous 3.5N solution of NaOH. The reaction mixture were stirred overnight at 50° C. and then evaporated to be use on next step without further purification. Int-8 (0.15 g, 0.5 mmol) was dissolved in MeOH and di-tert-butyl dicarbonate (BOC2O) (0.543 mg, 2.5 mmol) at 0° C. and stirred for 2 hours until the reaction was completed. The reaction mixture was evaporated and extracted with EtOAc and water. The organic phase was evaporated and used without further purification for the next step. Procedure to get Compound 7 of Example 1 was followed in order to get Compound 9. 1H-NMR (MeOD) δ: 7.96 (d, J=8.4 Hz, 2H), 7.56 (d, J=8.2 Hz, 2H), 7.17 (d, J=7.0 Hz, 1H), 7.06 (t, J=7.6 Hz, 1H), 6.89 (d, J=7.6 Hz, 1H), 6.76 (t, J=7.0 Hz, 1H), 4.52-4.49 (m, 2H), 3.72-3.65 (m, 2H), 2.79-2.75 (m, 2H), 1.72-1.68 (m, 2H), 1.50-1.45 (m, 2H), 1.44 (s, 9H). MS m/z: 491 (MH+).
    • Example 15 N-(2-amino-cyclohexa-1,5-dienyl)-4-(4-thiazol-2-yl-tetrahydro-pyran-4-yl)-benzamide
  • Figure US20120045412A1-20120223-C00369
  • The same procedure to synthesize Int-5 of Example 10 was followed to synthesize Int-2 but using chloro-acetaldehyde in methanol. The same procedure to get Int-6 and Compound 7 of Example 1 was used to synthesize Compound 4. 1H-NMR (MeOD) δ: 9.62 (s, 1H), 7.95 (d, J=8.4 Hz, 2H), 7.75 (d, J=7.6 Hz, 1H), 7.63 (d, J=7.2 Hz, 1H), 7.52 (d, J=8.4 Hz, 2H), 7.05 (d, J=7.6 Hz, 1H), 6.95 (t, J=7.2 Hz, 1H), 6.78 (d, J=7.6 Hz, 1H), 6.58 (t, J=7.2 Hz, 1H), 3.80-3.72 (m, 2H), 3.50-3.45 (m, 2H), 2.64-2.60 (m, 2H), 2.40-2.32 (m, 2H). MS m/z: 380 (MH+).
    • Example 16 N-(2-aminophenyl)-4-(1-(4-methylthiazol-2-yl)cyclopropyl)benzamide
  • Figure US20120045412A1-20120223-C00370
    • Example 16 Compound a0-111
  • Similar procedure from Example 1 was followed to obtain the title compound using 1-bromopropan-2-one. MS found for C20H19N3OS as (M+H)+ 350.19. 1H NMR (400 MHz, dmso-d6): δ: 9.65 (s, 1H), 7.95 (d, J=6.4 Hz, 2H), 7.53 (d, J=7.6 Hz, 2H), 7.13 (d, J=7.2 Hz, 1H), 6.97-6.92 (m, 2H), 6.74 (d, J=8.4 Hz, 1H), 6.57 (d, J=6.8 Hz, 1H), 4.88 (s, 2H), 2.26 (s, 3H), 1.62-1.60 (m, 2H), 1.42-1.40 (m, 2H).
    • Example 17 (S)-4-(1-(5-(2-amino-3-methylbutanoyl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)cyclopropyl)-N-(2-aminophenyl)benzamide
  • Figure US20120045412A1-20120223-C00371
    • Example 17 Compound a0-55
  • To a solution of 4-[1-(4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-yl)-cyclopropyl]-benzoic acid (100 mg, 0.333 mmol) in MeOH (3 mL), tert-Butoxycarbonyl-L-valine N-hydroxysuccinimide ester (Boc-VAL-OSu) (1.0 eq) was added and heated at reflux for 2 hours. After reaction was completed it was extracted with EtOAc. The organic phase was dried and evaporated.
  • O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (HATU) coupling was carried out following the same procedures from Example 1. The resulting compound was dissolved in 1N HCl and stirred for 1 hour. The resulting mixture was evaporated and purified by reverse phase chromatography to afford title compound. MS found for C27H31N5O2S as (M+H)+ 490.49. 1H NMR (400 MHz, dmso-d6): δ: 9.64 (s, 1H), 7.95 (d, J=8.4 Hz, 2H), 7.53 (d, J=8.4 Hz, 2H), 7.13 (d, J=7.2 Hz, 1H), 6.96-6.92 (m, 1H), 6.75 (d, J=8.0 Hz, 1H), 6.56 (t, J=6.4 Hz, 1H), 4.86 (s, 2H), 4.73-4.61 (m, 2H), 4.44-4.40 (m, 1H), 3.82-3.49 (m, 3H), 1.59-1.58 (m, 2H), 1.42-1.41 (m, 2H), 0.86 (d, J=6.8 Hz, 3H), 0.78 (d, J=6.8 Hz, 3H), 0.75-0.73 (m, 2H).
    • Example 18 N-(2-aminophenyl)-4-(4-(4-(6-chloropyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00372
    • Example 18 Compound a″10-07
  • Similar procedure from Example 15 was followed to obtain the title compound using 2-bromo-1-(5-chloropyridin-3-yl)ethanone. MS found for C26H23ClN4O2S as (M+H)+491.35. 1H NMR (400 MHz, dmso-d6): δ: 8.94 (d, J=2.4 Hz, 1H), 8.34 (dd, J=8.4, 6.0 Hz, 1H), 7.97-7.93 (m, 4H), 7.61 (d, J=8.8 Hz, 2H), 7.50 (d, J=8.8 Hz, 1H), 7.15 (d, J=8.0 Hz, 1H), 7.07-7.02 (m, 1H), 6.86 (t, J=6.4 Hz, 1H), 6.76-6.71 (m, 1H), 4.82 (s, 2H), 3.91-3.86 (m, 2H), 3.80-3.71 (m, 2H), 2.81-2.78 (m, 2H), 2.53-2.46 (m, 2H).
    • Example 19 N-(2-Amino-5-fluoro-phenyl)-4-[1-(4-pyridin-3-yl-thiazol-2-yl)-cyclopropyl]-benzamide
  • Figure US20120045412A1-20120223-C00373
    • Example 19 Compound a10-03
  • Similar procedure from Example 22 was followed to obtain the title compound using (2-amino-4-fluoro-phenyl)-carbamic acid tert-butyl ester. MS found for C24H19FN4OS as (M+H)+431.43. 1H NMR (400 MHz, dmso-d6): δ: 9.68 (s, 1H), 9.09 (d, J=1.6 Hz, 1H), 8.49 (dd, J=4.8, 3.2 Hz, 1H), 8.23-8.20 (m, 1H), 8.01-7.97 (m, 3H), 7.63 (dd, J=6.4, 1.6 Hz, 2H), 7.44-7.41 (m, 2H), 7.14 (dd, J=8.8, 7.6 Hz, 1H), 6.83-6.72 (m, 2H), 4.83 (s, 2H), 1.78-1.75 (m, 2H), 1.52-1.49 (m, 2H).
    • Example 20 N-(2-aminophenyl)-4-(4-(4-(6-(pyrrolidin-1-yl)pyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00374
    • Example 20 Compound a″10-09
  • Similar procedure from Example 34 was followed to obtain the title compound using pyrrolidine instead of 1-cyclopropyl-piperazine. MS found for C30H31N5O2S as (M+H)+ 526.36. 1H NMR (400 MHz, dmso-d6): δ: 9.53 (s, 1H), 8.62 (dd, J=2.4, 2.2 Hz, 1H), 7.93 (dd, J=8.8, 6.4 Hz, 1H), 7.88 (d, J=8.4 Hz, 2H), 7.69 (s, 1H), 7.53 (d, J=8.4 Hz, 2H), 7.07 (dd, J=7.6, 6.8 Hz, 1H), 6.90-6.86 (m, 1H), 6.69 (dd, J=8.0, 6.8 Hz, 1H), 6.53-6.49 (m, 1H), 6.43 (d, J=8.0 Hz, 1H), 4.81 (s, 2H), 3.72-3.68 (m, 2H), 3.62-3.57 (m, 2H), 3.37-3.33 (m, 4H), 2.60-2.59 (m, 2H), 2.39-2.33 (m, 2H), 1.90-1.87 (m, 4H).
    • Example 21 N-(2-amino-5-(thiophen-2-yl)phenyl)-4-(4-(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00375
    • Example 21 Compound a″0-61
  • Similar procedure from Example 29 was followed to obtain the title compound using (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid text-butyl ester De-protection was carried out with a mixture of dichloromethane/trifluoroacetic acid (DCM/TFA) (1:1) at room temperature. MS found for C29H30N4O2S2 as (M+H)+ 531.02. 1H NMR (400 MHz, dmso-d6): δ: 9.63 (s, 1H), 7.90 (d, J=8.4 Hz, 2H), 7.49 (d, J=8.4 Hz, 2H), 7.39 (d, J=2.0 Hz, 1H), 7.28 (dd, J=4.8, 4.0 Hz, 1H), 7.23 (dd, J=8.0, 4.8 Hz, 1H), 7.16-7.15 (m, 1H), 6.99-6.96 (m, 1H), 6.73 (d, J=8.4 Hz, 1H), 5.09 (s, 2H), 3.82-3.52 (m, 6H), 2.98-2.96 (m, 2H), 2.85-2.81 (m, 2H), 2.42 (s, 3H), 2.51-2.34 (m, 4H).
    • Example 22 N-(2-amino-5-(thiophen-2-yl)phenyl)-4-(4-(4-(pyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00376
    • Example 22 Compound a″10-04
  • 1-Pyridin-3-yl-ethanone (2 g, 16.52 mmol) was dissolved in a mixture of AcOH (8 mL) and HBr (4 mL). After stirring for 20 minutes, Br2 (1.0 eq) in CHCl3 (3 mL) was added in a period of 5 minutes. When the reaction was completed, the solids were filtered out and washed with water and extracted with EtOAc. The organic phase was dried, evaporated, and used for next step. Compound 4-(4-thiocarbamoyl-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (300 mg, 1.075 mmol) was dissolved in MeOH (7 mL) and 2-Bromo-1-pyridin-3-yl-ethanone (1.2 eq) was added and refluxed at 85° C. for 30 minutes. The reaction mixture was washed with saturated aqueous solution of NaHCO3 and then extracted with EtOAc. The organic phase was dried, evaporated and used for next step without any purification. Compound 4-[4-(4-pyridin-3-yl-thiazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid methyl ester (200 mg, 0.52 mmol) was dissolved in MeOH and 1N NaOH was added. After reaction was complete, the mixture was evaporated and acidified slowly with 1N HCl. The formed solid was filtered out and used for next step without purification. Compound 4-[4-(4-Pyridin-3-yl-thiazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid HATU (171 mg, 1.1 eq), (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid tert-butyl ester (136 mg, 1.1 eq), and DIPEA (0.14 mL, 2.0 eq) were dissolved in DMF and heated at 50° C. overnight. The reaction mixture was washed with water and extracted with EtOAc. The organic phase was dried, evaporated, and re-dissolved in a mixture of DCM and TFA (1:1). After stirring for 1 hour at room temperature the mixture was evaporated and purified by reverse phase chromatography to give Example 22. MS found for C30H26N4O2S2 as (M+H)+ 539.12. 1H NMR (400 MHz, dmso-d6): δ: 9.64 (s, 1H), 9.12 (d, J=1.6 Hz, 1H), 8.49 (dd, J=4.8, 3.2 Hz, 1H), 8.26-8.23 (m, 1H), 8.17 (s, 1H), 7.92 (d, J=8.4 Hz, 2H), 7.57 (d, J=8.8 Hz, 2H), 7.43-7.28 (m, 2H), 7.27 (t, J=4.4 Hz, 1H), 7.22 (dd, J=8.4, 6.1 Hz, 1H), 7.16-7.15 (m, 1H), 6.97 (dd, J=5.2, 1.6 Hz, 1H), 6.72 (d, J=8.4 Hz, 1H), 5.09 (s, 2H), 3.73-3.70 (m, 2H), 3.63-3.58 (m, 2H), 2.67-2.64 (m, 2H), 2.42-2.36 (m, 2H).
    • Example 23 N-(2-amino-5-fluorophenyl)-4-(4-(4-(pyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00377
    • Example 23 Compound a″10-03
  • Similar procedure from Example 9 was followed to obtain the title compound using (2-amino-4-fluoro-phenyl)-carbamic acid tert-butyl ester. MS found for C26H23FN4O2Sas (M+H)+ 475.45. 1H NMR (400 MHz, dmso-d6): δ: 9.58 (s, 1H), 8.52 (dd, J=4.8, 3.2 Hz, 1H), 8.29-8.26 (m, 1H), 8.19 (s, 1H), 8.13 (s, 1H), 7.91 (d, J=8.4 Hz, 2H), 7.60 (d, J=8.8 Hz, 2H), 7.45 (dd, J=4.4, 2.8 Hz, 1H), 7.11 (dd, J=8.4, 7.6 Hz, 1H), 6.82-6.72 (m, 2H), 4.78 (s, 2H) 3.76-3.73 (m, 2H), 3.66-3.61 (m, 2H), 2.70-2.63 (m, 2H), 2.43-2.40 (m, 2H).
    • Example 24 N-(2-aminophenyl)-4-(4-(4-(6-(2-methoxyethoxy)pyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00378
    • Example 24 Compound a″10-11
  • Similar procedure from Example 34 was followed to obtain the title compound using 2-methoxy-ethanol instead of 1-cyclopropyl-piperazine. MS found for C29H30N4O4S as (M+H)+ 531.08. 1HNMR (400 MHz, dmso-d6): δ: 9.58 (s, 1H), 8.72 (d, J=2.0 Hz, 1H), 8.20 (dd, J=8.4, 6.0 Hz, 1H), 7.98 (s, 1H), 7.92 (d, J=8.4 Hz, 2H), 7.57 (d, J=8.4 Hz, 2H), 7.11 (d, J=7.2 Hz, 1H), 6.95-6.87 (m, 2H), 6.73 (d, J=7.6 Hz, 1H), 6.56 (t, J=7.2 Hz, 1H), 4.39-4.36 (m, 2H), 3.75-3.72 (m, 2H), 3.65-3.60 (m, 4H), 2.27 (s, 3H), 2.69-2.65 (m, 2H), 2.43-2.38 (m, 2H).
    • Example 25 N-(2-aminophenyl)-4-(4-(4-(6-(4-methylpiperazin-1-yl)pyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00379
    • Example 25 Compound a″10-15
  • Similar procedure from Example 34 was followed to obtain the title compound using 1-methyl-piperazine instead of 1-cyclopropyl-piperazine. MS found for C31H34N6O2S as (M+H)+ 555.23. 1H NMR (400 MHz, dmso-d6): δ: 9.53 (s, 1H), 8.66 (d, J=2.0 Hz, 1H), 7.89 (dd, J=8.4, 7.2 Hz, 1H), 7.88 (d, J=8.0 Hz, 1H), 7.78 (s, 1H), 7.53 (d, J=8.4 Hz, 2H), 7.07 (t, J=8.0 Hz, 1H), 6.90-6.83 (m, 2H), 6.71 (d, J=8.0 Hz, 1H), 6.51 (t, J=7.6 Hz, 1H), 3.71-3.49 (m, 12H), 2.63-2.60 (m, 2H), 2.39-2.34 (m, 2H), 2.22 (s, 3H).
    • Example 26 N-(2-aminophenyl)-4-(4-(6,7-dihydropyrano[4,3-d]thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00380
    • Example 26 Compound a″0-63
  • Tetrahydro-pyran-4-one (100 mg, 1.0 mmol), triethylamine (TEA) (0.139 mL, 1.0 eq), and trimethylchlorosilane (TMSCl) (0.127 mL, 1.0 eq) were mixed together in DMF and heated at 80° C. for 2 hours. After the reaction was done, the mixture was evaporated and re-dissolved in THF NaOAc (16.3 mg) and N-bromosuccinimide (NBS) (177 mg, 1.0 eq) was added at −78° C. and stirred for 1 hour. When the reaction was done the mixture was extracted with EtOAc and the organic phase was dried and evaporated to give 3-bromo-tetrahydro-pyran-4-one that was used for next step without further purification. Following similar procedure for cyclization, hydrolysis and HATU coupling from Example 9 gave the title compound. MS found for C24H25N3O3S as (M+H)+436.23. 1H NMR (400 MHz, dmso-d6): δ: 9.53 (s, 1H), 7.86 (d, J=8.4 Hz, 2H), 7.47 (d, J=8.4 Hz, 2H), 7.08 (d, J=7.2 Hz, 1H), 6.91-6.87 (m, 1H), 6.69 (dd, J=8.0, 6.8 Hz, 1H), 6.50 (t, J=6.4 Hz, 1H), 4.81 (s, 2H), 4.62 (s, 2H), 3.85-3.82 (m, 2H), 3.68-3.52 (m, 4H), 2.73-2.70 (m, 2H), 2.54-2.18 (m, 4H).
    • Example 27 4-(4-(5-acetyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)tetrahydropyran-4-yl)-N-(2-aminophenyl)benzamide
  • Figure US20120045412A1-20120223-C00381
    • Example 27 Compound a″0-54
  • 4-[4-(4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid (40 mg, 0.116 mmol) in pyridine, catalytic amount of 4-dimethylaminopyridine (DMAP), and excess Ac2O were mixed together at room temperature. After the reaction was complete, the mixture was evaporated, washed with water, and extracted with EtOAc. The organic phase was dried and evaporated to give 4-[4-(5-acetyl-4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid. Similar HATU coupling procedure from Example 9 was followed to obtain the title compound. MS found for C26H28N4O3S as (M+H)+477.58. 1H NMR (400 MHz, dmso-d6): δ: 9.53 (s, 1H), 7.89 (d, J=8.4 Hz, 2H), 7.51 (t, J=8.4 Hz, 2H), 7.10 (d, J=7.2 Hz, 1H), 6.92 (t, J=7.6 Hz, 1H), 6.72 (d, J=8.0 Hz, 1H), 6.54 (t, J=7.6 Hz, 1H), 4.84 (s, 2H), 4.61-4.57 (m, 2H), 3.69-3.57 (m, 6H), 2.80-2.29 (m, 6H), 2.05-1.98 (m, 3H).
    • Example 28 4-(4-(5-acetyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)tetrahydropyran-4-yl)-N-(2-amino-5-(thiophen-2-yl)phenyl)benzamide
  • Figure US20120045412A1-20120223-C00382
    • Example 28 Compound a″0-62
  • Similar procedure from Example 27 was followed to obtain the title compound using (3-amino-4′-fluoro-biphenyl-4-yl)-carbamic acid tort-butyl ester. MS found for C30H30N4O3S2 as (M+H)+ 559.56. 1H NMR (400 MHz, dmso-d6): δ: 9.63 (s, 1H), 7.92 (d, J=8.2 Hz, 2H), 7.52 (t, J=7.2 Hz, 2H), 7.40 (s, 1H), 7.31 (d, J=5.2 Hz, 1H), 7.25 (d, J=8.0 Hz, 1H), 7.19 (d, J=3.6 Hz, 1H), 7.00 (dd, J=5.2, 1.6 Hz, 1H), 6.76 (d, J=8.4 Hz, 1H), 5.10 (s, 2H), 4.62-4.58 (m, 2H), 3.71-3.55 (m, 6H), 2.85-2.69 (m, 2H), 2.57-2.33 (m, 4H), 2.06-2.00 (m, 3H).
    • Example 29 N-(2-aminophenyl)-4-(4-(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00383
    • Example 29 Compound a″0-50
  • A methanolic solution of 4-(4-thiocarbamoyl-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (500 mg, 1.87 mmol) and 3-bromo-4-oxo-piperidine-1-carboxylic acid ethyl ester (1.0gr, 2.0 eq) was added and heated in the microwave at 75° C. for 30 minutes. The reaction mixture was evaporated, washed with water, and extracted with EtOAc. The organic phase was dried and evaporated to be used for next step without further purification.
  • 2-[4-(4-methoxycarbonyl-phenyl)-tetrahydro-pyran-4-yl]-6,7-dihydro-4H-thiazolo[5,4-c]pyridine-5-carboxylic acid ethyl ester was dissolved in MeOH and 4N NaOH was added. The mixture was stirred at 50° C. for 24 hours. After hydrolysis was complete the solution was evaporated and suspended in water. Aqueous HCl was added slowly to permit the formation of precipitates that were filtered out.
  • To 1 mL of an aqueous solution of 4-[4-(4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid (40 mg, 0.116 mmol) p-formaldehyde was added. The mixture was heated at 50° C. and stirred for 20 minutes. This mixture was cooled down at 0° C. and alpha-picoline-borane (15 mg, 1.2 eq) was added, followed by stirring overnight. The mixture was evaporated and purified by reverse phase chromatography. HATU coupling was carried out following the procedure from Example 9 using benzene-1,2-diamine, followed by reverse phase purification gave the title compound. MS found for C25H28N4O2S as (M+H)+ 449.10. 1H NMR (400 MHz, dmso-d6): δ: 9.55 (s, 1H), 7.89 (d, J=8.8 Hz, 2H), 7.49 (d, J=8.4 Hz, 2H), 7.10 (d, J=8.0 Hz, 1H), 6.91 (d, J=7.2 Hz, 1H), 6.72 (d, J=6.8 Hz, 1H), 6.54 (t, J=7.2 Hz, 1H), 4.84 (s, 2H), 3.70-3.67 (m, 2H), 3.59-3.54 (m, 2H), 3.46 (s, 2H), 2.71-2.62 (m, 4H), 2.55-2.52 (m, 2H), 2.34-2.30 (m, 5H).
    • Example 30 N-(2-amino-5-fluorophenyl)-4-(4-(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00384
    • Example 30 Compound a″0-59
  • Similar procedure from Example 29 was followed to obtain the title compound using (2-amino-4-fluoro-phenyl)-carbamic acid tert-butyl ester De-protection was carried out with a mixture of DCM/TFA (1:1) at room temperature. MS found for C25H27FN4O2S as (M+H)+ 467.23. 1H NMR (400 MHz, dmso-d6): δ: 9.54 (s, 1H), 7.84 (d, J=8.4 Hz, 2H), 7.47 (d, J=8.4 Hz, 2H), 7.08 (dd, J=8.8, 7.6 Hz, 1H), 6.75-6.67 (m, 2H), 4.77 (s, 2H), 3.67-3.64 (m, 2H), 3.56-3.53 (m, 2H), 2.67-2.60 (m, 6H), 2.52-2.29 (m, 4H), 2.27 (s, 3H).
    • Example 31 N-(2-amino-5-(thiophen-2-yl)phenyl)-4-(4-(4-(pyrrolidin-1-ylmethyl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00385
    • Example 31 Compound a″0-26
  • Similar procedure from Example 32 was followed to obtain the title compound using pyrrolidine instead of 2-methoxy-ethanol. MS found for C30H32N4O2S2 as (M+H)+ 545.32. 1H NMR (400 MHz, dmso-db): δ: 9.64 (s, 1H), 7.93 (d, J=8.4 Hz, 2H), 7.51 (d, J=8.6 Hz, 2H), 7.41 (s, 1H) 7.35-7.31 (m, 2H), 7.26 (dd, J=8.2-5.4 Hz, 1H), 7.20 (d, J=3.2 Hz, 1H), 7.05-7.00 (m, 1H), 6.77 (d, J=8.0 Hz, 1H), 5.11 (s, 2H), 3.76-3.70 (m, 2H), 3.63 (s, 2H), 3.61-3.52 (m, 2H), 2.62-2.53 (m, 2H), 2.41-2.31 (m, 2H), 1.69-1.61 (m, 4H).
    • Example 32 N-(2-amino-5-(thiophen-2-yl)phenyl)-4-(4-(4-((2-methoxyethoxy)methyl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00386
    • Example 32 Compound a″0-28
  • To a solution of 4-(4-thiocarbamoyl-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (5.0gr, 17.92 mmol) in DMF was added acetic acid 3-chloro-2-oxo-propyl ester (6.32 mL, 3.0 eq) and DIPEA (6.24 mL, 2.0 eq). The reaction mixture was heated at 90° C. for 30 minutes in the microwave. Said mixture was then partitioned between ethyl acetate and water. The organic phase was dried with MgSO4 and evaporated under vacuum. The solid was used for next step without purification.
  • The solid 4-[4-(4-acetoxymethyl-4-hydroxy-4,5-dihydro-thiazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid methyl ester was dissolved in MeOH and excess of p-TsOH was added and heated in the microwave for 20 minutes at 65° C. The reaction mixture was washed with saturated of NaHCO3 and extracted with EtOAc. The organic phase was dried with MgSO4 and evaporated under vacuum.
  • Compound 4-[4-(4-hydroxymethyl-thiazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid methyl ester (2.0gr, 6.00 mmol) was dissolved in DCM and then MSCl (1.67 mL 3.5 eq) and TEA (1.80 mL, 2.0 eq) were added at 0° C. and stirred for 2 hours. When the reaction was complete, 1N aqueous HCl was added to the reaction mixture. The organic phase was separated and dried over MgSO4 and evaporated under vacuum conditions to have the solid 4-[4-(4-methanesulfonyloxymethyl-thiazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid methyl ester that was used for next step without further purification.
  • Compound 4-[4-(4-methanesulfonyloxymethyl-thiazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid methyl ester (50 mg, 0.121 mmol) was dissolved in excess 2-methoxy-ethanol (1 mL), and potassium tert-butoxide (13 mg, 1.0 eq) was added to the solution. The mixture was heated at 90° C. for 30 minutes in the microwave. The reaction mixture was evaporated extracted with EtOAc. The organic phase was dried over MgSO4 and evaporated to give a solid that was used for next step without further purification. Hydrolysis and HATU coupling was carried out following the same procedures from Example 64. MS found for C29H31N3O4S2 as (M+H)+ 550.09. 1H NMR (400 MHz, dmso-d6): δ: 9.64 (s, 1H), 7.93 (d, J=8.4 Hz, 2H), 7.53 (d, J=8.4 Hz, 2H), 7.48 (s, 1H) 7.42 (s, 1H), 7.31 (d, J=5.2 Hz, 1H), 7.25 (dd, J=8.0-6.2 Hz, 1H), 7.20 (d, J=3.2 Hz, 1H), 7.05-7.00 (m, 1H), 6.73 (d, J=8.0 Hz, 1H), 5.12 (s, 2H) 3.73-3.68 (m, 2H), 3.61-3.51 (m, 6H), 3.46-3.40 (m, 2H), 2.21 (s, 3H) 2.62-2.53 (m, 2H), 2.42-2.32 (m, 2H).
    • Example 33 N-(2-amino-5-(thiophen-2-yl)phenyl)-4-(4-(4-(morpholinomethyl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00387
    • Example 33 Compound a″0-30
  • Similar procedure from Example 32 was followed to obtain the title compound using morpholine instead of 2-methoxy-ethanol. MS found for C30H32N4O3S2 as (M+H)+561.20. 1H NMR (400 MHz, dmso-d6): δ: 9.65 (s, 1H), 7.92 (d, J=8.2 Hz, 2H), 7.51 (d, J=8.4 Hz, 2H), 7.41 (s, 1H) 7.32 (d, J=5.4 Hz, 1H), 7.25 (dd, J=8.6, 6.1 Hz, 1H), 7.19 (d, J=3.2 Hz, 1H), 7.01 (t, J=5.4 Hz, 1H), 6.78 (d, J=8.0 Hz, 1H), 5.1 (s, 2H), 3.74-3.70 (m, 2H), 3.61-3.52 (m, 6H), 2.65-2.54 (m, 2H), 2.45-2.30 (m, 6H).
    • Example 34 N-(2-aminophenyl)-4-(4-(4-(6-(4-cyclopropylpiperazin-1-yl)pyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00388
    • Example 34 Compound a″10-17
  • 4-(4-thiocarbamoyl-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (700 mg, 2.50 mmol), in MeOH was combined with 2-Bromo-1-(6-chloro-pyridin-3-yl)-ethanone (800 mg, 1.1 eq) and heated at 65° C. for 2 hours. After reaction was complete, the reaction mixture was evaporated, diluted with EtOAc, and washed with a saturated aqueous NaHCO3 and brine. The organic phase was dried over MgSO4 and evaporated.
  • 4-{4-[4-(6-chloro-pyridin-3-yl)-thiazol-2-yl]-tetrahydro-pyran-4-yl}-benzoic acid methyl ester was dissolved in MeOH and 1N NaOH was added. After the reaction was done, the reaction mixture was evaporated, suspended in water, and neutralized with 1N HCl. The formed solids were collected by filtration. The solids were then suspended in acetonitrile and filtered to have a clean product 4-{4-[4-(6-chloro-pyridin-3-yl)-thiazol-2-yl]-tetrahydro-pyran-4-yl}-benzoic acid. Compound 4-{4-[4-(6-chloro-pyridin-3-yl)-thiazol-2-yl]-tetrahydro-pyran-4-yl}-benzoic acid (150 mg, 0.375 mmol) was dissolved in DMF. Then, 1-cyclopropyl-piperazine (82 mg, 1.1 eq), and DIPEA (0.2 mL, 3.2 eq) were added, and the reaction mixture was heated in the microwave at 90° C. for 30 minutes. After reaction was done, the reaction mixture was extracted with EtOAc. The organic phase was dried with MgSO4 and evaporated to have the solid material 4-(4-{4-[6-(4-cyclopropyl-piperazin-1-yl)-pyridin-3-yl]-thiazol-2-yl}-tetrahydro-pyran-4-yl)-benzoic acid.
  • 4-(4-{4-[6-(4-cyclopropyl-piperazin-1-yl)-pyridin-3-yl]-thiazol-2-yl}-tetrahydro-pyran-4-yl)-benzoic acid (60 mg, 0.122 mmol), benzene-1,2-diamine (26 mg, 2.0 eq), HATU (56 mg, 1.2 eq), and DIPEA (0.042 mL, 2.1 eq) were dissolved in DMF and stirred at room temperature for 2 hours. After the reaction was complete, the reaction mixture was extracted with EtOAc and water. The organic phase was dried with MgSO4 and evaporated. The solid was purified by reverse phase chromatography to afford title compound. MS found for C33H36N6O2S as (M+H)+ 581.56. 1H NMR (400 MHz, dmso-d6): δ: 9.24 (s, 1H), 8.35 (s, 1H), 7.68 (d, J=6.2 Hz, 1H), 7.60 (d, J=8.2 Hz, 2H), 7.51 (s, 1H), 7.23 (d, J=8.4 Hz, 2H), 6.79 (d, J=7.2 Hz, 1H), 6.62-6.51 (m, 2H), 6.41 (d, J=7.4 Hz, 1H), 6.22 (t, J=5.2 Hz, 1H), 4.51 (s, 2H), 3.45-3.38 (m, 2H), 3.32-3.25 (m, 2H), 3.18-3.11 (m, 4H), 2.38-2.22 (m, 6H), 2.15-2.05 (m, 2H), 1.31-1.23 (m, 1H), 0.12-0.1 (m, 4H).
    • Example 35 N-(2-aminophenyl)-4-(4-(4-(6-(piperazin-1-yl)pyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00389
    • Example 35 Compound a″10-13
  • Similar procedure from Example 34 was followed to obtain the title compound using piperazine-1-carboxylic acid tort-butyl ester instead of 1-cyclopropyl-piperazine. An additional step was taken here. The amine was de-protected with a 1:1 mixture of TFA and DCM at room temperature and purified by reverse phase chromatography to have N-(2-amino-phenyl)-4-{4-[4-(6-piperazin-1-yl-pyridin-3-yl)-thiazol-2-yl]-tetrahydro-pyran-4-yl}-benzamide. MS found for C30H32N6O2S as (M+H)+ 541.16. 1H NMR (400 MHz, dmso-d6): δ: 9.54 (s, 1H), 8.67 (d, J=2.0 Hz, 1H), 8.00 (dd, J=8.8, 2.4 Hz, 1H), 7.88 (d, J=8.4 Hz, 2H), 7.79 (s, 1H), 7.53 (d, J=8.8 Hz, 2H), 7.07 (d, J=8.0 Hz, 1H), 6.91-6.84 (m, 2H), 6.69 (d, J=6.8 Hz, 1H), 6.51 (t, J=8.4 Hz, 1H), 4.81 (s, 2H), 3.71-3.68 (m, 2H), 3.61-3.57 (m, 2H), 3.52-3.49 (m, 4H), 2.89-2.87 (m, 4H), 2.64-2.60 (m, 2H), 2.42-2.34 (m, 2H).
    • Example 36 N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00390
    • Example 36 Compound a″0-11
  • Similar procedure from Example 64 was followed to obtain the title compound using (3-amino-4′-fluoro-biphenyl-4-yl)-carbamic acid tert-butyl ester instead of (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid tort-butyl ester. MS found for C27H24FN3O2S as (M+H)+ 474.32. 1H NMR (400 MHz, dmso-d6): δ: 9.63 (s, 1H), 7.92 (d, J=8.4 Hz, 2H), 7.74 (d, J=3.2 Hz, 1H), 7.64 (d, J=7.2 Hz, 1H), 7.55-7.50 (m, 6H), 7.45 (s, 1H), 7.26 (dd, J=8.4, 6.4 Hz, 1H), 7.15 (t, J=8.4 Hz, 2H), 6.80 (d, J=8.4 Hz, 1H), 5.06 (s, 2H), 3.71-3.70 (m, 2H), 3.60-3.49 (m, 2H), 2.64-2.60 (m, 2H), 2.42-2.32 (m, 2H).
    • Example 37 N-(2-amino-5-(thiophen-2-yl)phenyl)-4-(4-(4-ethoxythiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00391
  • Compound A (0.49 g, 1.8 mmol) and ethyl chloroacetate (1.11 mL, 10.4 mmol) were dissolved in EtOH (15 mL). The resulting mixture was heated at 60° C. overnight, concentrated, and purified by silica gel chromatography (1% MeOH/DCM) to afford Compound B (0.35 g, 58%). MS m/z: 348 (MH+). Compound B (0.35 g, 1.0 mmol) was hydrolyzed with 2N aqueous NaOH (5 mL) and THF (2 mL) to afford corresponding acid Compound C (0.30 g, 90%). MS m/z: 334 (MH+). Compound C (0.20 g, 0.6 mmol) was coupled with amine Compound D (0.18 g, 0.6 mmol) in the presence of HATU (0.46 g, 1.2 mmol) and triethylamine (0.25 mL, 1.8 mmol) in DMF (10 mL) to afford crude amide Compound E. MS m/z: 606 (MH+). Crude Compound E was treated with 4N HCl/dioxane, concentrated and purified by preparative HPLC to afford Example 37 (0.041 g, 13% for two steps). MS (C27H27N3O3S2) m/z: 506 (MH+). NMR 1H NMR (dmso-d6): δ 9.66 (s, 1H), 7.94 (d, J=8.4 Hz, 2H), 7.52 (d, J=8.4 Hz, 2H), 7.42 (s, 1H), 7.31 (d, J=5.2 Hz, 1H), 7.25 (d, J=8.4 Hz, 1H), 7.18 (d, J=2.4 Hz, 1H), 7.02 (t, J=3.2 Hz, 1H), 6.87 (d, J=8.4 Hz, 1H), 6.41 (s, 1H), 5.12 (s, 2H), 4.01 (q, J=7.2 Hz, 2H), 3.68 (m, 2H), 3.58 (m, 2H), 2.53 (m, 2H), 2.31 (m, 2H), 1.28 (t, J=7.2 Hz, 3H).
    • Example 38 4-(4-(1H-tetrazol-5-yl)tetrahydropyran-4-yl)-N-(2-amino-5-(thiophen-2-yl)phenyl)benzamide
  • Figure US20120045412A1-20120223-C00392
    • Example 38 Compound g-03
  • A solution of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (400 mg, 1.63 mmol), trimethylsilyl azide (TMSN3) (40 mg, 2.1 eq), and Bu2Sn(0) (40 mg, 1.0 eq) in DME was heated in the microwave at 150° C. for 4 hours. After the reaction was done the mixture was washed with water and extracted with EtOAc. The organic phase was dried and evaporated to give 4-[4-(1H-tetrazol-5-yl)-tetrahydro-pyran-4-yl]-benzoic acid methyl ester.
  • Hydrolysis HATU coupling and amine de-protection were carried out following the same procedures from Example 64. MS found for C23H22N6O2S as (M+H)+447.56. 1H NMR (400 MHz, dmso-d6): δ: 9.64 (s, 1H), 7.92 (d, J=8.4 Hz, 2H), 7.42-7.35 (m, 3H), 7.28 (d, J=5.4 Hz, 1H), 7.22 (dd, J=4.0, 3.6 Hz, 1H), 7.15 (t, J=6.0 Hz, 1H), 6.95 (dd, J=8.4, 6.4 Hz, 1H), 6.73 (d, J=6.4 Hz, 1H), 5.08 (s, 2H), 3.83-3.73 (m, 2H), 3.33-3.25 (m, 2H), 2.66-2.60 (m, 2H), 2.32-2.22 (m, 2H), 1.4 (s, 1H).
    • Example 39 4-(4-(1H-tetrazol-5-yl)tetrahydropyran-4-yl)-N-(4-amino-4′-fluorobiphenyl-3-yl)benzamide
  • Figure US20120045412A1-20120223-C00393
    • Example 39 Compound g-02
  • Similar procedure from Example 38 was followed to obtain the title compound using (3-amino-4′-fluoro-biphenyl-4-yl)-carbamic acid tert-butyl ester instead of (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid tert-butyl ester. MS found for C25H23FN6O2 as (M+H)+ 459.41. 1H NMR (400 MHz, dmso-d6): δ: 9.65 (s, 1H), 8.93 (d, J=8.4 Hz, 2H), 7.55-7.50 (m, 2H), 7.45-7.35 (m, 3H), 7.25 (d, J=7.2 Hz, 1H), 7.15 (t, J=8.0 Hz, 2H), 6.81 (d, J=8.4 Hz, 1H), 5.05 (s, 2H), 3.85-3.78 (m, 2H), 3.35-3.28 (m, 2H), 2.70-2.62 (m, 2H), 2.33-2.28 (m, 2H), 2.42 (s, 1H).
    • Example 40 N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(4-ethoxythiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00394
  • Compound C (0.10 g, 0.3 mmol) was coupled with amine Compound F (0.092 g, 0.3 mmol) in the presence of HATU (0.23 g, 0.6 mmol), and triethylamine (0.15 mL, 1.1 mmol) in DMF (5 mL) to afford crude amide Compound G. MS m/z: 618 (MH+). Crude Compound G was treated with 4N HCl/dioxane, concentrated and purified by preparative HPLC to afford Example 40. (0.021 g, 14% for two steps). MS (C29H28FN3O3S) m/z: 518 (MH+). NMR 1H NMR (dmso-d6): δ 9.67 (s, 1H), 7.93 (d, J=8.4 Hz, 2H), 7.52 (m, 4H), 7.43 (s, 1H), 7.25 (d, J=8.0 Hz, 1H), 7.17 (t, J=8.8 Hz, 2H), 6.82 (d, J=8.4 Hz, 1H), 6.41 (s, 1H), 5.18 (s, 2H), 4.00 (q, J=7.2 Hz, 2H), 3.68 (m, 2H), 3.55 (m, 2H), 2.50 (m, 2H), 2.32 (m, 2H), 1.28 (t, J=7.2 Hz, 3H).
    • Example 41 N-(2-aminophenyl)-4-(4-(4-(pyrazin-2-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00395
    • Example 41 Compound a″12-01
  • Similar procedure from Example 9 was followed to obtain the title compound using 2-bromo-1-(pyrazin-2-yl)ethanone. MS found for C25H23N5O2S as (M+H)+ 458.25. 1H NMR (400 MHz, dmso-d6): δ: 9.59 (s, 1H), 9.29 (s, 1H), 8.64 (s, 1H), 8.59 (s, 1H), 8.32 (s, 1H), 7.93 (d, J=8.0 Hz, 2H), 7.60 (d, J=8.2 Hz, 2H), 7.11 (d, J=7.6 Hz, 1H), 6.92 (t, J=6.8 Hz, 1H), 6.73 (d, J=7.6 Hz, 2H), 6.54 (t, J=7.2 Hz, 1H), 4.85 (s, 2H), 3.74-3.62 (m, 4H), 2.72-2.50 (m, 4H).
    • Example 42 N-hydroxy-4-(4-(4-(pyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00396
    • Example 42 Compound a″10-01
  • Similar procedure from Example 22 was followed to obtain the title compound using O-(1,1,2,2-tetramethyl-propyl)-hydroxylamine. De-protection of TBS group was done by heating the protected hydroxylamine with 1N HCl for 30 minutes. MS found for C20H19N3O3S as (M+H)+ 382.65. 1H NMR (400 MHz, dmso-d6): δ: 11.14 (s, 1H), 9.14 (d, J=1.6 Hz, 1H), 8.99 (s, 1H), 8.51 (dd, J=4.8-3.2 Hz, 1H), 8.28-8.19 (m, 1H), 7.69 (d, J=8.4 Hz, 2H), 7.52 (d, J=8.4 Hz, 2H), 7.46-7.43 (m, 1H), 3.75-3.73 (m, 2H), 3.62-3.58 (m, 2H), 2.67-2.64 (m, 2H), 2.40-2.33 (m, 2H).
    • Example 43 N-hydroxy-4-(4-(thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00397
    • Example 43 Compound a″0-09
  • Similar procedure from Example 64 was followed to obtain the title compound using O-(1,1,2,2-tetramethyl-propyl)-hydroxylamine instead of (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid text-butyl ester. De-protection of TBS group was done by heating the protected hydroxylamine with 1N HCl for 30 minutes. MS found for C15H16N2O3S as (M+H)+ 305.12. 1H NMR (400 MHz, dmso-d6): δ: 11.08 (s, 1H), 8.94 (s, 1H), 7.68 (d, J=3.2 Hz, 1H), 7.63 (d, J=8.8 Hz, 2H), 7.60 (d, J=3.2 Hz, 1H), 7.39 (d, J=8.4 Hz, 2H), 3.69-3.64 (m, 2H), 3.50-3.45 (m, 2H), 2.56-2.52 (m, 2H), 2.32-2.25 (m, 2H).
    • Example 44 N-hydroxy-4-(4-(4-(6-(4-methylpiperazin-1-yl)pyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00398
    • Example 44 Compound a″10-14
  • 4-(4-{4-[6-(4-methyl-piperazin-1-yl)-pyridin-3-yl]-thiazol-2-yl}-tetrahydro-pyran-4-yl)-benzoic acid (200 mg, 0.215 mmol), HATU (90 mg, 1.1 eq), H2N-OTBS (2.0 eq), and TEA (0.1 mL, 3 eq) were mixed in DMF and stirred for 2 hours. The reaction mixture was washed with water and then extracted with EtOAc. The organic phase was evaporated, suspended in 1N HCl, and slowly evaporated at 50° C. for 30 minutes to give title compound. MS found for C25H29N5O3S as (M+H)+480.15. 1H NMR (400 MHz, dmso-d6): δ: 11.13 (s, 1H), 8.99 (s, 1H), 8.68 (d, J=2.4 Hz, 1H), 8.00 (dd, J=8.8, 6.4 Hz, 1H), 7.81 (s, 1H), 7.68 (d, J=8.4 Hz, 2H), 7.50 (d, J=8.4 Hz, 2H), 6.87 (d, J=8.8 Hz, 1H), 3.73-3.70 (m, 2H), 3.61-3.56 (m, 2H), 3.53-3.50 (m, 4H), 2.65-2.60 (m, 2H), 2.44-2.20 (m, 4H), 2.38-2.32 (m, 2H), 2.22 (s, 3H).
    • Example 45 N-(2-amino-5-(5-chlorothiophen-2-yl)phenyl)-4-(4-(thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00399
    • Example 45 Compound a″0-14
  • Similar procedure from Example 64 was followed to obtain the title compound using [2-amino-4-(5-chloro-thiophen-2-yl)-phenyl]-carbamic acid tert-butyl ester instead of (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid tert-butyl ester. MS found for C27H24FN3O2S as (M+H)+ 474.22. 1H NMR (400 MHz, dmso-db): 6:9.64 (s, 1H), 7.92 (d, J=8.4 Hz, 2H), 7.73 (d, J=3.2 Hz, 1H), 7.65 (d, J=3.2 Hz, 1H), 7.51 (d, J=8.4 Hz, 2H), 7.35 (s, 1H), 7.20 (dd, J=8.4, 6.4 Hz, 1H), 7.06 (d, J=4.0 Hz, 1H), 7.01 (d, J=4.1 Hz, 1H), 6.75 (d, J=8.4 Hz, 1H), 5.21 (s, 2H), 3.73-3.70 (m, 2H), 3.57-3.52 (m, 2H), 2.63-2.59 (m, 2H), 2.40-2.35 (m, 2H).
    • Example 46 N-(2-amino-5-(5-methylthiophen-2-yl)phenyl)-4-(4-(thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00400
    • Example 46 Compound a″0-13
  • Similar procedure from Example 64 was followed to obtain the title compound using [2-amino-4-(5-methyl-thiophen-2-yl)-phenyl]-carbamic acid tert-butyl ester instead of (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid tert-butyl ester. MS found for C26H25N3O2S2 as (M+H)+ 476.07. 1H NMR (400 MHz, dmso-d6): δ: 9.61 (s, 1H), 7.92 (d, J=8.4 Hz, 2H), 7.72 (d, J=3.4 Hz, 1H), 7.61 (d, J=3.4 Hz, 1H), 7.51 (d, J=8.4 Hz, 2H), 7.32 (s, 1H), 7.18 (d, J=5.4 Hz, 1H), 6.95 (d, J=4.2 Hz, 1H), 6.72 (d, J=8.2 Hz, 1H), 6.68 (s, 1H), 5.06 (s, 2H) 3.74-3.68 (m, 2H), 3.58-3.50 (m, 2H), 2.66-2.56 (m, 2H), 2.38 (s, 3H) 2.42-2.33 (m, 2H).
    • Example 47 N-(2-aminophenyl)-4-(4-(4-(4-(4-methylpiperazin-1-yl)phenyl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00401
  • Compound H (0.62 g, 2.2 mmol), and Compound I (0.65 g, 2.3 mmol) were dissolved in MeOH (10 mL). The resulting mixture was stirred overnight, concentrated, and purified by preparative HPLC to afford Compound J (0.54 g, 54%). MS m/z: 458, 460 (MH+). A solution of tris(dibenzylideneacetone)dipalladium (0) (Pd2(dba)3, 0.054 g, 0.059 mmol) and 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (BINAP, 0.11 g, 0.18 mmol) in dioxane (10 mL) under nitrogen atmosphere was stirred for 10 minutes before the addition of Compound J (0.54 g, 1.2 mmol) and N-methylpiperazine (0.27 mL, 2.4 mmol). After the sample was stirred for 10 minutes, the resultant solution was treated with KOtBu (0.20 g, 1.8 mmol). The mixture was stirred and heated at 80° C. overnight, then cooled down, and treated with EtOAc and filtered. The solution was washed with brine, dried, concentrated and purified by preparative HPLC to afford Compound K (0.18 g, 31%). MS m/z: 478 (MH+). Compound K (0.18 g, 0.4 mmol) was hydrolyzed with 2N aqueous NaOH (5 mL) and THF (2 mL). It was then coupled with phenylenediamine (0.062 g, 0.6 mmol) in the presence of HATU (0.28 g, 0.7 mmol) and TEA (0.16 mL, 1.1 mmol) in DMF (5 mL). The resultant mixture was purified by preparative HPLC to afford title compound (0.018 g, 9%). MS (C32H35N5O2S) m/z: 555 (MH+). 1H NMR (dmso-d6): δ 9.57 (s, 1H), 7.90 (d, J=8.4 Hz, 2H), 7.78 (d, J=8.8 Hz, 2H), 7.75 (s, 1H), 7.55 (d, J=8.4 Hz, 2H), 7.11 (d, J=6.8 Hz, 1H), 6.95 (d, J=8.8 Hz, 2H), 6.91 (t, J=7.2 Hz, 1H), 6.72 (d, J=8.0 Hz, 1H), 6.54 (t, J=8.4 Hz, 1H), 4.85 (s, 2H), 3.74 (m, 2H), 3.64 (m, 2H), 3.28 (m, 4H), 3.17 (m, 4H), 2.65 (m, 2H), 2.40 (m, 2H), 2.23 (s, 3H).
    • Example 48 N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(1-(thiazol-2-yl)cyclopropyl)benzamide
  • Figure US20120045412A1-20120223-C00402
    • Example 48 Compound a0-79
  • Similar procedure from Example 64 was followed to obtain the title compound using 4-(1-cyano-cyclopropyl)-benzoic acid methyl ester instead of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester. MS found for C25H20FN3OS as (M+H)+ 430.21. 1H NMR (400 MHz, dmso-d6): δ: 9.73 (s, 1H), 7.99 (d, J=8.4 Hz, 2H), 7.64 (d, J=3.2 Hz, 1H), 7.57-7.52 (m, 4H), 7.47-7.44 (m, 2H), 7.26 (dd, J=8.0-6.0 Hz, 1H), 7.18 (t, J=8.8 Hz, 2H), 6.83 (d, J=8.4 Hz, 1H), 5.08 (s, 2H), 1.65-1.62 (m, 2H), 1.46-1.43 (m, 2H).
    • Example 49 N-(2-amino-5-(thiophen-2-yl)phenyl)-4-(4-(2,3-dihydropyridin-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00403
    • Example 49 Compound f-03
  • To 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (200 mg, 0.81 mmol) in toluene was added ethynyl-trimethyl-silane (800 mg, 10 eq) and CpCo(CO)2 (0.2 eq). The mixture was irradiated with light of 400 nm under stirring conditions for 2 days. Toluene was removed by evaporation. The solids were washed with water and the compound was extracted with EtOAc. The organic phase was dried and evaporated. 4-[4-(4,6-bis-trimethylsilanyl-pyridin-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid methyl ester was dissolved in THF and TBAF was added in excess. The reaction mixture was stirred overnight at room temperature. After the reaction was done, it was extracted with EtOAc. The organic phase was evaporated to be used for next step. Hydrolysis, HATU coupling, and amine de-protection were carried out following the same procedures from Example 64 using (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid tert-butyl ester instead of (3-amino-4′-fluoro-biphenyl-4-yl)-carbamic acid tert-butyl ester. MS found for C27H25N3O2S as (M+H)+456.26. 1H NMR (400 MHz, dmso-d6): δ: 9.59 (s, 1H), 8.51 (t, J=4.8 Hz, 1H), 7.87 (d, J=8.4 Hz, 2H), 7.70-7.66 (m, 1H), 7.47 (d, J=8.8 Hz, 2H), 7.39 (d, J=8.8 Hz, 2H), 7.30 (t, J=4.0 Hz, 1H), 7.24 (dd, J=8.4, 6.0 Hz, 1H), 7.18-7.14 (m, 2H), 7.01-6.99 (m, 1H), 6.75 (d, J=8.4 Hz, 1H), 5.09 (s, 2H), 3.64-3.67 (m, 2H), 3.58-3.46 (m, 2H), 2.72-2.69 (m, 2H), 2.34-2.29 (m, 2H).
    • Example 50 N-(2-amino-5-(thiophen-2-yl)phenyl)-4-(1-(thiazol-2-yl)cyclopropyl)benzamide
  • Figure US20120045412A1-20120223-C00404
    • Example 50 Compound a0-80
  • Similar procedure from Example 64 was followed to obtain the title compound using 4-(1-cyano-cyclopropyl)-benzoic acid methyl ester instead of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester. MS found for C23H19N3OS2 as (M+H)+ 418.20. 1H NMR (400 MHz, dmso-d6): δ: 9.73 (s, 1H), 7.99 (d, J=8.4 Hz, 2H), 7.64 (d, J=3.2 Hz, 1H), 7.56 (d, J=8.4 Hz, 2H), 7.45-7.35 (m, 2H), 7.22 (dd, J=5.2, 4.4 Hz, 1H), 7.21 (d, J=2.8 Hz, 1H), 6.78 (d, J=8.4 Hz, 1H), 5.13 (s, 2H), 1.65-1.62 (m, 2H), 1.46-1.43 (m, 2H).
    • Example 51 N-(2-amino-5-(thiophen-2-yl)phenyl)-4-(4-(5-(pyridin-3-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00405
    • Example 51 Compound a″0-40
  • To the mixture of methyl 4-(4-(thiazol-2-yl)-tetrahydro-2H-pyran-4-yl)benzoate (570 mg, 1.88 mmol) in DMF (5 mL) was added a 1M solution of bromine in DMF (1.9 mL, 1.88 mmol). After 2 hours, additional 1M solution of bromine in DMF (1.9 mL, 1.88 mmol) was added. The reaction mixture was then concentrated to half its volume and poured into water (25 mL). The resulting solid was filtered and washed with water and dried to give methyl 4-(4-(5-bromothiazol-2-yl)-tetrahydro-2H-pyran-4-yl)benzoate. 1H NMR (400 MHz, dmso-d6): δ 7.99 (d, J=8.0 Hz, 2H); 7.58 (s, 1H); 7.41 (d, J=8.0 Hz, 2H); 3.87 (s, 3H); 3.91-3.84 (m, 2H); 3.73-3.68 (m, 2H); 2.63-2.59 (m, 2H); 2.41-2.37 (m, 2H); MS found for C16H16BrNO3S (m/z): 3840.3 [M++1].
  • A mixture pyridin-3-ylboronic acid (128 mg, 1.05 mmol), methyl 4-(4-(5-bromothiazol-2-yl)-tetrahydro-2H-pyran-4-yl)benzoate (200 mg, 0.52 mmol), potassium carbonate (144 mg, 1.05 mmol), and PdCl2(dppf) (76 mg, 0.11 mmol) in toluene/ethanol/water (2 mL/1 mL/1 mL) was heated in microwave (Emry's Optimizer) at 100° C. for 20 minutes. The reaction mixture was then poured into EtOAc/hexanes mixture and the resultant solid was filtered and dried. The dried solid was used for next step without purification. MS found for C21H20N2O3S (m/z): 381.20 [M++1]. To the above crude ester in methanol (5 mL) and THF (2 mL), NaOH (1.0 M, 5.0 mL) was added and stirred at room temperature for 16 hours. The reaction mixture was then diluted with water and acidified with 1N HCl to about pH 7. The aqueous solution was then concentrated and diluted with methanol. The solids were filtered. The filtrate was then concentrated and used for next step. MS found for C20H18N2O3S (m/z): 367.39 [M++1]. To the above crude carboxylic acid in NMP (3 mL), was added HATU (300 mg, 0.76 mmol), tert-butyl 2-amino-4-(thiophen-2-yl)phenylcarbamate (303 mg, 1.05 mmol) and N-methylmorpholine (NMM) (0.3 mL, 2.62 mmol) and stirred at 50° C. for 16 hours. The reaction mixture was then diluted with water and acetonitrile/methanol and the resulting solid was filtered and washed with water and dried to give tert-butyl 2-(4-(4-(5-(pyridin-3-yl)thiazol-2-yl)-tetrahydro-2H-pyran-4-yl)benzamido)-4-(thiophen-2-yl)phenylcarbamate. MS found for C35H34N4O4S2 as (M+H)+ 639.17. To the above butoxycarbonyl (Boc) protected compound was added 4.0 M HCl dioxane (6.0 mL) and stirred at room temperature for 1 hour. The reaction mixture was then concentrated and diluted with water and acetonitrile and directly purified by preparative HPLC followed by lyophilization to give the title compound. MS found for C30H26N4O2S2 as (M+H)+ 538.91. 1H NMR (400 MHz, dmso-d6): δ 9.68 (s, 1H); 8.82 (s, 1H); 8.50 (d, J=3.6 Hz, 1H); 8.25 (s, 1H); 7.99-7.95 (m, 3H); 7.59 (d, J=8.8 Hz, 2H) 7.41-7.39 (m, 2H); 7.32-7.19 (m, 4H); 7.02-7.00 (m, 1H); 6.77 (d, J=8.4 Hz, 1H); 5.12 (brs, 2H); 3.76-3.73 (m, 2H); 3.65-3.60 (m, 2H); 2.66-2.63 (m, 2H); 2.41-2.39 (m, 2H).
    • Example 52 N-(2-amino-5-(5-methylthiophen-2-yl)phenyl)-4-(1-(thiazol-2-yl)cyclopropyl)benzamide
  • Figure US20120045412A1-20120223-C00406
    • Example 52 Compound a0-81
  • Similar procedure from Example 64 was followed to obtain the title compound using 4-(1-cyano-cyclopropyl)-benzoic acid methyl ester instead of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester. MS found for C24H21N3OS2 as (M+H)+ 432.23. 1H NMR (400 MHz, dmso-d6): δ: 9.71 (s, 1H), 7.98 (d, J=8.0 Hz, 2H), 7.64 (d, J=3.6 Hz, 1H), 7.56 (d, J=8.4 Hz, 2H), 7.45 (d, J=2.8 Hz, 1H), 7.36 (s, 1H), 7.18 (dd, J=8.4, 6.4 Hz, 1H), 6.98 (d, J=3.6 Hz, 1H), 6.75 (d, J=8.4 Hz, 1H), 6.69-6.68 (m, 1H), 5.08 (s, 2H), 2.39 (s, 3H), 1.64-1.62 (m, 2H), 1.46-1.44 (m, 2H).
    • Example 53 N-hydroxy-4-(4-(4-(pyrazin-2-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00407
    • Example 53 Compound a″12-02
  • Similar procedure from Example 22 was followed to obtain the title compound using 2-bromo-1-(pyrazin-2-yl)ethanone. MS found for C19H18N4O3S as (M+H)+ 383.85. 1H NMR (400 MHz, dmso-d6): δ: 11.09 (s, 1H), 9.24 (d, J=1.2 Hz, 1H), 8.61-8.55 (m, 2H), 8.28 (s, 1H), 7.66 (d, J=8.4 Hz, 2H), 7.50 (d, J=8.4 Hz, 2H), 3.72-3.70 (m, 2H), 3.60-3.55 (m, 2H), 2.66-2.62 (m, 2H), 2.38-2.33 (m, 2H).
    • Example 54 N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(4-(pyrazin-2-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00408
    • Example 54 Compound a″12-03
  • Similar procedure from Example 22 was followed to obtain the title compound using 1-pyrazin-2-yl-ethanone. MS found for C31H26FN5O2Sas (M+H)+ 552.22. 1H NMR (400 MHz, dmso-d6): δ: 9.65 (s, 1H), 9.29 (d, J=1.2 Hz, 1H), 8.65 (t, J=2.8 Hz, 1H), 8.60 (d, J=2.4 Hz, 1H), 8.33 (s, 1H), 7.95 (d, J=8.4 Hz, 2H), 7.62 (d, J=8.8 Hz, 2H), 7.54-7.50 (m, 2H), 7.44 (s, 1H), 7.25 (dd, J=8.4, 5.6 Hz, 1H), 7.17 (t, J=9.2 Hz, 2H), 6.80 (d, J=8.4 Hz, 1H), 5.05 (s, 2H), 3.77-3.74 (m, 2H), 3.68-3.63 (m, 2H), 2.73-2.63 (m, 2H), 2.47-2.46 (m, 2H).
    • Example 55 N-(2-aminophenyl)-4-(1-(4-(pyrazin-2-yl)thiazol-2-yl)cyclopropyl)benzamide
  • Figure US20120045412A1-20120223-C00409
    • Example 55 Compound a12-01
  • Similar procedure from Example 22 was followed to obtain the title compound using 4-(1-cyano-cyclopropyl)-benzoic acid methyl ester instead of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester. MS found for C23H19N5OS as (M+H)+ 414.65. 1H NMR (400 MHz, dmso-d6): δ: 9.76 (s, 1H), 9.19 (d, J=1.6 Hz, 1H), 8.64 (t, J=4.4 Hz, 1H), 8.58 (d, J=2.8 Hz, 1H), 8.15 (s, 1H), 8.00 (d, J=8.0 Hz, 2H), 7.63 (d, J=8.0 Hz, 2H), 7.18 (d, J=7.2 Hz, 1H), 6.99 (t, J=7.6 Hz, 1H), 6.82 (d, J=7.2 Hz, 1H), 6.68-6.66 (m, 1H), 1.82-1.79 (m, 2H), 1.54-1.51 (m, 2H).
    • Example 56 N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(1-(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-yl)cyclopropyl)benzamide
  • Figure US20120045412A1-20120223-C00410
    • Example 56 Compound a0-117
  • Similar procedure from Example 29 was followed to obtain the title compound using 4-(1-cyano-cyclopropyl)-benzoic acid methyl ester instead of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester. MS found for C29H27FN4OS as (M+H)+499.19. 1H NMR (400 MHz, dmso-d6): δ: 9.71 (s, 1H), 7.97 (d, J=8.0 Hz, 2H), 7.56-7.52 (m, 4H), 7.46 (s, 1H), 7.27 (dd, J=8.4-6.4 Hz, 1H), 7.18 (t, J=8.8 Hz, 2H), 6.83 (d, J=8.4 Hz, 1H), 5.07 (s, 2H), 3.41 (s, 2H), 2.64-2.61 (m, 4H), 2.29 (s, 3H), 1.59-1.57 (m, 2H), 1.41-1.38 (m, 2H).
    • Example 57 N-(2-amino-5-fluorophenyl)-4-(4-(4-(pyrazin-2-yl)thiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00411
    • Example 57 Compound a″12-04
  • Similar procedure from Example 22 was followed to obtain the title compound using (2-amino-4-fluoro-phenyl)-carbamic acid tert-butyl ester MS found for C25H22FN5O2S as (M+H)+ 476.41. 1H NMR (400 MHz, dmso-d6): δ: 9.58 (s, 1H), 9.29 (d, J=1.2 Hz, 1H), 8.65 (t, J=2.4 Hz, 1H), 8.60 (d, J=2.4 Hz, 1H), 8.33 (s, 1H), 7.91 (d, J=8.4 Hz, 2H), 7.61 (d, J=8.4 Hz, 2H), 7.11 (dd, J=8.4, 7.6 Hz, 1H), 4.79 (s, 2H) 3.77-3.74 (m, 2H), 3.67-3.62 (m, 2H), 2.72-2.69 (m, 2H), 2.47-2.41 (m, 2H).
    • Example 58 N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(1-(6,7-dihydropyrano[4,3-d]thiazol-2-yl)cyclopropyl)benzamide
  • Figure US20120045412A1-20120223-C00412
    • Example 58 Compound a0-122
  • Similar procedure from Example 26 was followed to obtain the title compound using 4-(1-cyano-cyclopropyl)-benzoic acid methyl ester and (3-amino-4′-fluoro-biphenyl-4-yl)-carbamic acid tort-butyl ester. MS found for C28H24FN3O2S as (M+H)+ 486.54. 1H NMR (400 MHz, dmso-d6): δ: 9.71 (s, 1H), 7.97 (d, J=8.4 Hz, 2H), 7.55-7.47 (m, 5H), 7.28-7.25 (m, 1H), 7.18 (t, J=8.8 Hz, 2H), 6.82 (d, J=8.0 Hz, 1H), 5.07 (s, 2H), 4.61 (s, 2H), 3.85 (t J=5.6 Hz, 2H), 2.69 (t, J=5.6 Hz, 2H), 1.61-1.58 (m, 2H), 1.43-1.42 (m, 2H).
    • Example 59 N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(pyridin-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00413
    • Example 59 Compound e-05
  • Similar procedure from Example 49 was followed to obtain the title compound using (3-amino-4′-fluoro-biphenyl-4-yl)-carbamic acid tert-butyl ester. MS found for C29H26FN3O2 as (M+H)+ 468.20. 1H NMR (400 MHz, dmso-d6): δ: 9.59 (s, 1H), 8.52 (dd, J=4.8, 3.6 Hz, 1H), 7.87 (d, J=8.8 Hz, 2H), 7.71-7.66 (m, 1H), 7.53-7.38 (m, 6H), 7.24 (dd, J=8.4, 6.0 Hz, 1H), 7.19-7.14 (m, 3H), 6.80 (d, J=8.0 Hz, 1H), 5.03 (s, 2H), 3.68-3.64 (m, 2H), 3.51-3.46 (m, 2H), 2.72-2.68 (m, 2H), 2.34-2.24 (m, 2H).
    • Example 60 N-(2-amino-5-(5-chlorothiophen-2-yl)phenyl)-4-(4-(pyridin-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00414
    • Example 60 Compound e-06
  • Similar procedure from Example 49 was followed to obtain the title compound using [2-amino-4-(5-chloro-thiophen-2-yl)-phenyl]-carbamic acid tert-butyl ester instead of (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid tert-butyl ester. MS found for C27H24ClN3O2S as (M+H)+ 490.63. 1H NMR (400 MHz, dmso-d6): δ: 9.58 (s, 1H), 8.52 (d, J=4.0 Hz, 1H), 7.86 (d, J=8.8 Hz, 2H), 7.71-7.66 (m, 1H), 7.46 (d, J=8.8 Hz, 2H), 7.39-7.34 (m, 2H), 7.20-7.14 (m, 2H), 7.06-7.00 (m, 2H), 6.75 (d, J=8.4 Hz, 1H), 5.18 (s, 2H), 3.67-3.64 (m, 2H), 3.51-3.46 (m, 2H), 2.72-2.63 (m, 2H), 2.34-2.22 (m, 2H).
    • Example 61 N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(5-(1-hydroxyethyl)-4-methylthiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00415
    • Example 61 Compound a″0-20
  • To a solution of 4-[4-(5-Acetyl-4-methyl-thiazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid (100 mg, 0.289 mmol) in MeOH was added NaBH4 (22 mg, 2 eq) at 0° C. and stirred for 1 hour. After reaction was done, it was quenched with aqueous HCl and stirred for 1 more hour. Reaction mixture was evaporated and purified by reverse phase chromatography to have pure 4-{4-[5-(1-hydroxy-ethyl)-4-methyl-thiazol-2-yl]-tetrahydro-pyran-4-yl}-benzoic acid. HATU coupling and amine de-protection was carried out following the procedure from Example 64 to afford title compound. MS found for C30H30FN3O3S as (M+H)+532.25. 1H NMR (400 MHz, dmso-dc): 6:9.64 (s, 1H), 7.92 (d, J=8.4 Hz, 2H), 7.54-7.51 (m, 4H), 7.45 (d, J=1.2 Hz, 1H), 7.25 (dd, J=8.4, 6.4 Hz, 1H), 7.17 (t, J=8.2 Hz, 2H), 6.81 (d, J=8.4 Hz, 1H), 5.44 (d, J=3.6 Hz, 1H), 5.06 (s, 2H), 4.91-4.89 (m, 1H), 3.69-3.66 (m, 2H), 3.59-3.54 (m, 2H), 2.57-2.54 (m, 2H), 2.35-2.29 (m, 2H), 2.23 (s, 3H), 1.26 (d, J=6.4 Hz, 3H).
    • Example 62 N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(4,5-dimethylthiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00416
    • Example 62 Compound a″0-22
  • Similar procedure from Example 9 was followed to obtain the title compound using 3-chloro-butan-2-one and (3-amino-4′-fluoro-biphenyl-4-yl)-carbamic acid tert-butyl ester. MS found for C29H28FN3O2S as (M+H)+502.24. 1H NMR (400 MHz, dmso-d6): δ: 9.63 (s, 1H), 7.91 (d, J=8.4 Hz, 2H), 7.54-7.44 (m, 5H), 7.25 (dd, J=8.4, 6.4 Hz, 1H), 7.17 (t, J=8.8 Hz, 2H), 6.81 (d, J=8.2 Hz, 1H), 5.05 (s, 2H), 3.71-3.68 (m, 2H), 3.59-3.54 (m, 2H), 2.54-2.50 (m, 2H), 2.31-2.26 (m, 2H), 2.22 (s, 3H), 2.20 (s, 3H).
    • Example 63 N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(5-methylthiazol-2-yl)tetrahydropyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00417
    • Example 63 Compound a′0-37
  • Similar procedure from Example 9 was followed to obtain the title compound using 2-chloro-1,1-dimethoxy-propane. MS found for C28H26FN3O2S as (M+H)+ 488.35. 1H NMR (400 MHz, dmso-d6): δ: 9.63 (s, 1H), 7.91 (d, J=8.4 Hz, 2H), 7.54-7.44 (m, 5H), 7.38 (s, 1H), 7.26-7.23 (m, 1H), 7.17 (t, J=8.8 Hz, 2H), 6.81 (d, J=8.4 Hz, 1H), 5.05 (s, 2H), 3.73-3.70 (m, 2H), 3.58-3.53 (m, 2H), 2.57-2.53 (m, 2H), 2.34 (s, 3H), 2.31-12.29 (m, 2H).
    • Example 64 N-(2-amino-5-thiophen-2-yl-phenyl)-4-(4-thiazol-2-yl-tetrahydro-pyran-4-yl)-benzamide
  • Figure US20120045412A1-20120223-C00418
    • Example 64 Compound a″0-12
  • Methyl 4-(cyanomethyl)-benzoic acid methyl ester (1.92 g, 11.01 mmol) and 1-bromo-2-(2-bromo-ethoxy)-ethane (12.56 mL, 55.04 mmol) were combined in THF (15 mL) and cooled down to 0° C. Potassium bis(trimethylsilyl)-amide (0.5M in toluene, 48.3 mL, 24.21 mmol, 2.2 eq) was added over a period of 15 minutes and then warmed up to room temperature and stirred for 2 hours. The reaction mixture was partitioned between ethyl acetate and water. The organic phase was dried with MgSO4 and evaporated under vacuum. The crude product was purified by chromatography on silica gel (25% EtOAc/hexanes) to afford 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester. To a solution of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (1.55 g 6.32 mmol) in MeOH (10 mL) was added Et3N (3 mL). H2S was bubbled into the solution. The reaction vessel was stirred at room temperature for 3 days. The reaction mixture was then evaporated and purified by silica gel chromatography (33% EtOAc/hexanes) to afford 4-(4-thiocarbamoyl-tetrahydro-pyran-4-yl)-benzoic acid methyl ester.
  • The above compound was dissolved in DMF. Chloro-acetaldehyde in water (1.2 eq) was added and heated with microwave at 85° C. for 1 hour. The reaction mixture was partitioned between ethyl acetate and water. The organic phase was dried with MgSO4 and evaporated under vacuum. This product was used for next step without purification. The solid 4-[4-(4-hydroxy-4,5-dihydro-thiazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid methyl ester was dissolved in MeOH and an excess of p-TsOH was added and heated in the microwave for 20 minutes at 70° C. The reaction mixture was diluted with EtOAc and washed with saturated NaHCO3 solution. The organic phase was dried with MgSO4, evaporated under vacuum and purified by silica gel chromatography (33% EtOAc/hexanes).
  • Compound 4-(4-thiazol-2-yl-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (1.00 g, 3.3 mmol) was dissolved in MeOH (5 mL) and treated with 1N NaOH. The reaction mixture was stirred at room temperature for 2 hours. After the reaction was complete, the solution mixture was evaporated, suspended in water, and acidified with 1N HCl. 4-(4-thiazol-2-yl-tetrahydro-pyran-4-yl)-benzoic acid was collected as precipitate, dried under vacuum, and used for next step without further purification.
  • A solution of 4-(4-thiazol-2-yl-tetrahydro-pyran-4-yl)-benzoic acid (0.9 g, 3.11 mmol), 2-Amino-4-thiophen-2-yl-phenyl-carbamic acid tert-butyl ester (1.08 g, 1.1 eq), HATU (1.42 g, 1.2 eq), and DIPEA (1.04 mL, 2.0 eq) were dissolved in DMF and stirred at 45° C. overnight. After the reaction was complete, it was cooled down and precipitated with water and a saturated solution of NaHCO3. The solid formed was collected and used for next step without further purification. Solid {2-[4-(4-thiazol-2-yl-tetrahydro-pyran-4-yl)-benzoylamino]-4-thiophen-2-yl-phenyl}-carbamic acid tort-butyl ester was re-dissolved in DCM/TFA (1:1) and stirred for 1 hour. After the reaction was complete, the reaction mixture was evaporated and purified by reverse phase chromatography to afford title compound, Example 64. MS found for C28H26N7FOS as (M+H)+ 461.12. 1H NMR (400 MHz, dmso-d6): 1H-NMR (DMSO) δ: 9.74 (s, 1H), 8.04 (d, J=8.0 Hz, 2H), 7.67 (d, J=8.8 Hz, 2H), 7.44 (s, 1H), 7.32 (d, J=5.2 Hz, 1H), 7.27 (d, J=8.4 Hz, 1H), 7.21 (d, J=3.6 Hz, 1H), 7.01 (q, J=3.6, 4.8 Hz, 1H), 6.78 (d, J=8.4 Hz, 1H), 5.14 (s, 1H), 4.02-4.00 (m, 2H), 3.69-3.65 (m, 2H), 2.11-2.08 (m, 4H).
    • Example 65 N-(4-amino-4′-fluoro-biphenyl-3-yl)-4-[4-(4-cyclopropyl-thiazol-2-yl)-tetrahydro-pyran-4-yl]-benzamide
  • Figure US20120045412A1-20120223-C00419
    • Example 65 Compound a″0-44
  • Similar procedure from Example 64 was followed to obtain the title compound using 2-bromo-1-cyclopropyl-ethanone instead of 3-chloro-butan-2-one. MS found for C30H28FN3O2S as (M+H)+ 514.35. 1H NMR (400 MHz, dmso-d6): δ: 9.84 (s, 1H), 7.93 (d, J=8.0 Hz, 2H), 7.58-7.54 (m, 2H), 7.52-7.51 (m, 3H), 7.34 (dd, J=8.4, 6.4 Hz, 1H), 7.20 (t, J=8.8 Hz, 2H), 7.13 (s, 1H) 6.96 (d, J=8.4 Hz, 1H), 3.71-3.68 (m, 2H), 3.57-3.52 (m, 2H), 2.56-2.52 (m, 2H), 2.35-2.29 (m, 2H), 2.03-1.98 (m, 1H), 0.89-0.84 (m, 2H), 0.77-0.74 (m, 2H).
    • Example 66 4-[4-(5-acetyl-4-methyl-thiazol-2-yl)-tetrahydro-pyran-4-yl]-N-(4-amino-4′-fluoro-biphenyl-3-yl)-benzamide
  • Figure US20120045412A1-20120223-C00420
    • Example 66 Compound a″0-46
  • Similar procedure from Example 64 was followed to obtain the title compound using 3-chloro-pentane-2,4-dione instead of 3-chloro-butan-2-one. MS found for C30H28FN3O3S as (M+H)+ 530.41. 1H NMR (400 MHz, dmso-d6): δ: 9.66 (s, 1H), 7.95 (d, J=8.4 Hz, 2H), 7.58-7.51 (m, 4H), 7.44 (s, 1H), 7.26 (dd, J=8.4, 6.4 Hz, 1H), 7.17 (t, J=8.8 Hz, 2H), 6.81 (d, J=8.4 Hz, 1H), 5.06 (s, 2H), 3.70-3.67 (m, 2H), 3.62-3.57 (m, 2H), 2.62-2.47 (m, 2H), 2.61 (s, 3H), 2.42 (s, 3H).
    • Example 67 4-[4-(5-methyl-2H-[1,2,4]triazol-3-yl)-tetrahydro-pyran-4-yl]-benzoic acid 4-amino-4′-fluoro-biphenyl-3-yl ester
  • Figure US20120045412A1-20120223-C00421
    • Example 67 Compound r-02
  • 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (300 mg, 1.22 mmol) was suspended in water and then 4N NaOH was added and heated at 110° C. for 15 minutes. To this solution 2N HCl was added to precipitate the product. The solid was filtered out and used for next step without further purification. 4-(4-carbamoyl-tetrahydro-pyran-4-yl)-benzoic acid (200 mg, 0.80 mmol) was dissolved in DMF and then DMA-acetal in excess was added. The mixture was heated at 50° C. for 20 minutes. The reaction mixture was evaporated and used for next step without further purification. 4-[4-(1-dimethylamino-ethylidenecarbamoyl)-tetrahydro-pyran-4-yl]-benzoic acid methyl ester (50 mg, 0.150 mmol) and hydrazine hydrate (0.015 mL, 2 eq) were dissolved in AcOH and heated at 50° C. for 20 minutes. The reaction mixture was evaporated and used for next step without further purification. Hydrolysis HATU coupling, and amine de-protection was carried out following the same procedures from Example 64 using (3-amino-4′-fluoro-biphenyl-4-yl)-carbamic acid tert-butyl ester instead of (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid tert-butyl ester. MS found for C27H25FN4O3 as (M+H)+ 473.21. 1H NMR (400 MHz, dmso-d6): δ: 13.31 (s, 1H), 9.55 (s, 1H), 7.82 (d, J=7.6 Hz, 2H), 7.50 (dd, J=8.8, 5.2 Hz, 2H), 7.41 (s, 1H), 7.35 (d, J=8.4 Hz, 2H), 7.20 (dd, J=8.0-2.4 Hz, 1H), 7.14 (t, J=8.8 Hz, 2H), 6.77 (d, J=6.77 Hz, 1H), 5.00 (s, 2H), 3.73-3.71 (m, 2H), 3.37-3.31 (m, 2H), 2.58-2.55 (m, 2H), 2.24 (s, 3H), 2.06-2.03 (m, 2H).
    • Example 68 N-(4-amino-4′-fluoro-biphenyl-3-yl)-4-(1-pyridin-2-yl-cyclopropyl)-benzamide
  • Figure US20120045412A1-20120223-C00422
    • Example 68 Compound e-01
  • Similar procedure from Example 49 was followed to obtain the title compound using 4-(1-cyano-cyclopropyl)-benzoic acid methyl ester instead of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester. MS found for C27H22FN3Oas (M+H)+424.31. 1H NMR (400 MHz, dmso-d6): δ: 9.57 (s, 1H), 8.34 (dd, J=4.8, 1.2 Hz, 1H), 7.86 (d, J=8.0 Hz, 2H), 7.44-7.40 (m, 3H), 7.35-7.33 (m, 3H), 7.15 (dd, J=8.0-2.0 Hz, 1H), 7.08-6.99 (m, 3H), 6.72-6.67 (m, 2H), 4.95 (s, 2H), 1.46-1.43 (m, 2H), 1.17-1.15 (m, 2H).
    • Example 69 4-[1-(5-acetyl-4-methyl-thiazol-2-yl)-cyclopropyl]-N-(2-amino-phenyl)-benzamide
  • Figure US20120045412A1-20120223-C00423
    • Example 69 Compound a0-115
  • Similar procedure from Example 64 and Example 66 was followed to obtain the title compound. MS found for C22H21N3O2S as (M+H)+392.28. 1H NMR (400 MHz, CD3OD): 1H-NMR (CD3OD) δ: 8.03 (d, J=8.2 Hz, 2H), 7.64 (d, J=8.4 Hz, 2H), 7.20 (d, J=7.6 Hz, 1H), 7.08 (d, J=8.4 Hz, 1H), 6.91 (d, J=8.0 Hz, 1H), 6.77 (t, J=7.2 Hz, 1H), 2.62 (s, 3H), 2.40 (s, 3H), 1.85-1.84 (m, 2H), 1.57-1.56 (m, 2H).
    • Example 70 N-(2-amino-phenyl)-4-[1-(5-methyl-4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-yl)-cyclopropyl]-benzamide
  • Figure US20120045412A1-20120223-C00424
    • Example 70 Compound a0-49
  • Similar procedure from Example 29 was followed to obtain the title compound using 4-(1-cyano-cyclopropyl)-benzoic acid methyl ester instead of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester. MS found for C23H24N4OS as (M+H)+ 405.32. 1H NMR (400 MHz, dmso-d6): 1H-NMR (CD3OD) δ: 8.32 (s, 1H), 7.97 (d, J=8.8 Hz, 2H), 7.56 (d, J=8.4 Hz, 2H), 7.17 (d, J=6.4 Hz, 1H), 7.08-7.04 (m, 1H), 6.89 (dd, J=8.0, 7.2 Hz, 1H), 6.77-6.73 (m, 1H), 3.74 (s, 2H), 2.99-2.96 (m, 2H), 2.89-2.86 (m, 2H), 2.56 (s, 3H), 1.70-1.68 (m, 2H), 1.49-1.46 (m, 2H).
    • Example 71 4-[1-(5-acetyl-4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-yl)-cyclopropyl]-N-(2-amino-phenyl)-benzamide
  • Figure US20120045412A1-20120223-C00425
    • Example 71 Compound a0-53
  • Similar procedure from Example 27 was followed to obtain the title compound using 4-(1-cyano-cyclopropyl)-benzoic acid methyl ester instead of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester. MS found for C24H24N4O2S as (M+H)+433.18. 1H NMR (400 MHz, CD3OD): δ: 7.95 (d, J=8.2 Hz, 2H), 7.55 (d, J=8.2 Hz, 2H), 7.18 (d, J=7.2 Hz, 1H), 7.08 (t, J=7.0 Hz, 1H), 6.88 (d, J=7.6 Hz, 1H), 6.76 (t, J=6.0 Hz, 1H), 4.63 (s, 3H), 3.91-3.76 (m, 2H), 2.85-2.73 (m, 2H), 2.19-2.11 (m, 2H), 1.73-1.67 (m, 2H), 1.50-1.43 (m, 2H).
    • Example 72 N-(4-amino-4′-fluoro-biphenyl-3-yl)-4-{4-[4,6-bis-(1-hydroxy-1-methyl-ethyl)-pyridin-2-yl]-tetrahydro-pyran-4-yl}-benzamide
  • Figure US20120045412A1-20120223-C00426
    • Example 72 Compound e-08
  • Similar procedure from Example 49 was followed to obtain the title compound using 2-methyl-but-3-yn-2-ol and (3-amino-4′-fluoro-biphenyl-4-yl)-carbamic acid tert-butyl ester instead of ethynyl-trimethyl-silane and (2-amino-4-thiophen-2-yl-phenyl)-carbamic acid tert-butyl ester respectively. MS found for C35H38FN3O4 as (M+H)+ 584.36. 1H NMR (400 MHz, dmso-d6): δ: 9.58 (s, 1H), 7.86 (d, J=8.4 Hz, 2H), 7.53-7.48 (m, 5H), 7.43 (s, 1H), 7.25-7.23 (m, 2H), 7.16 (t, J=9.2 Hz, 2H), 6.81 (d, J=8.4 Hz, 1H), 5.12 (s, 2H), 5.10 (s, 1H), 5.03 (s, 2H), 3.69-3.65 (m, 2H), 3.47-3.42 (m, 2H), 2.76-2.73 (m, 2H), 2.31-2.26 (m, 2H), 1.41 (s, 6H), 1.32 (s, 6H).
    • Example 73 N-(2-Amino-phenyl)-4-[1-(5-isopropyl-4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-yl)-cyclopropyl]-benzamide
  • Figure US20120045412A1-20120223-C00427
    • Example 73 Compound a0-51
  • Similar procedure from Example 29 was followed to obtain the title compound using 4-(1-cyano-cyclopropyl)-benzoic acid methyl ester and acetone instead of 4-(4-cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester and p-formaldehyde, respectively. MS found for C25H28N4OSas (M+H)+ 433.65. 1H NMR (400 MHz, CD3OD): δ: 8.43 (s, 1H), 7.96 (d, J=8.4 Hz, 2H), 7.55 (d, J=8.4 Hz, 2H), 7.17 (d, J=8.2 Hz, 1H), 7.08-7.04 (m, 1H), 6.90 (d, J=8.0 Hz, 1H), 6.77 (t, J=1.6 Hz, 1H), 3.82 (s, 2H), 3.11-3.02 (m, 2H), 2.86-2.83 (m, 2H), 1.70-1.67 (m, 2H), 1.49-1.46 (m, 2H), 1.17 (d, J=6.4 Hz, 6H).
    • Example 74 N-(2-aminophenyl)-4-(4-(5-(pyridin-3-yl)thiazol-2-yl)-tetrahydro-2H-pyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00428
    • Example 74 Compound a″0-39
  • Similar procedure from Example 51 was followed to obtain the title compound using tert-butyl-2-(4-(4-(5-(pyridin-3-yl)thiazol-2-yl)-tetrahydro-2H-pyran-4-yl)benzamido)-4-(thiophen-2-yl)phenylcarbamate and 1,2-phenylenediamine. MS found for C26H24N4SO2 as (M+H)+ 456.98. 1H NMR (400 MHz, dmso-d6): δ 9.59 (brs, 1H); 8.81 (d, J=2.0 Hz, 1H); 8.49 (d, J=3.2 Hz, 1H); 8.24 (s, 1H); 7.99 (d, J=8.4 Hz, 1H); 7.94 (d, J=8.4 Hz, 2H); 7.57 (d, J=8.4 Hz, 2H); 7.42-7.41 (m, 1H); 7.12 (d, J=7.6 Hz, 1H); 6.94 (t, J=7.2 Hz, 1H); 6.74 (d, J=7.2 Hz, 1H); 6.55 (t, J=7.2 Hz, 1H); 3.76-3.73 (m, 2H); 3.65-3.60 (m, 2H); 2.65-2.62 (m, 2H); 2.43-2.38 (m, 2H).
    • Example 75 N-(2-aminophenyl)-4-(4-(5-(6-cyclopropylpyridin-3-yl)thiazol-2-yl)-tetrahydro-2H-pyran-4-yl)benzamide
  • Figure US20120045412A1-20120223-C00429
    • Example 75 Compound a″0-42
  • A mixture of 2-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (490 mg, 2.00 mmol), methyl 4-(4-(5-bromothiazol-2-yl)-tetrahydro-2H-pyran-4-yl)benzoate (382 mg, 1.00 mmol), potassium carbonate (276 mg, 2.0 mmol), and 1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (PdCl2(dppf), 146 mg, 0.20 mmol) in toluene/ethanol/water (2 mL/1 mL/1 mL) was heated in microwave (Emry's Optimizer) at 110 C for 20 minutes. The reaction mixture was cooled to room temperature and then diluted with EtOAc and filtered. The filtrate was concentrated and purified by Flash Chromatography (SiO2, 95% EtOAC:5% MeOH) to give methyl 4-(4-(5-(6-cyclopropylpyridin-3-yl)thiazol-2-yl)-tetrahydro-2H-pyran-4-yl)benzoate. MS found for C24H24N2O3S as (M+H)+421.42. To the above ester in MeOH/THF/dioxane (1:1:1) (9 mL) was added 3N NaOH (5.0 mL) and stirred at 55° C. After 14 hours, the reaction mixture was concentrated, diluted with water, and neutralized with 6N HCl. The formed solids were filtered and washed with water and dried. MS found for C23H22N2O3S as (M+H)+407.04. The acid was used further without purification.
  • To the above carboxylic acid (406 mg, 1.0 mmol) in DMF (3 mL), was added HATU (570 mg, 1.5 mmol), 1,2-phenylenediamine (162 mg, 1.5 mmol) and NMM (0.4 mL) and stirred at room temperature for 1 hour. The reaction mixture was diluted with water and acetonitrile and directly purified by preparative HPLC affording the title compound, after lyophilization. MS found for C29H28N4SO2 as (M+H)+ 496.92. 1H NMR (400 MHz, dmso-d6): δ 9.58 (s, 1H); 8.60 (d, J=2.0 Hz, 1H); 8.13 (s, 1H); 7.93 (d, J=8.4 Hz, 2H); 7.83 (dd, J=8.0, 2.0 Hz, 2H); 7.56 (d, J=8.4 Hz, 2H); 7.30 (d, J=8.0 Hz, 2H); 7.12 (d, J=7.6 Hz, 1H); 6.93 (d, J=7.2 Hz, 1H); 6.74 (d, J=7.6 Hz, 1H); 6.57 (d, J=7.2 Hz, 1H); 4.90 (brs, 2H); 3.75-3.72 (m, 2H); 3.63-3.59 (m, 2H); 2.64-2.62 (m, 2H); 2.46-2.36 (m, 2H); 2.09-2.05 (m, 1H); 0.96-0.88 (m, 4H).
    • Example 76 N-(2-amino-phenyl)-4-[4-(4-pyrazin-2-yl-1H-imidazol-2-yl)-tetrahydro-pyran-4-yl]-benzamide
  • Figure US20120045412A1-20120223-C00430
    • Example 76 Compound q-01
  • 4-(4-Cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (1.0 g, 4.08 mmol) was suspended in 4.0N NaOH and heated at 110° C. for 1 hour. After the reaction was complete, 2N HCl was slowly added to form a precipitate. The precipitate was then filtered, dried under vacuum, and used for next step without purification. 4-(4-Carboxy-phenyl)-tetrahydro-pyran-4-carboxylic acid (0.4 g, 1.6 mmol) was dissolved in NMP. HATU (1.28 g, 2.1 eq) and DIPEA (0.8 mL, 3.0 eq) were added and stirred at 50° C. for 1 hour. The reaction mixture was cooled down to room temperature and benzyl alcohol (172 mg, 1.0 eq) was added. The reaction mixture was stirred at room temperature overnight. Saturated aqueous solution of NaHCO3 was added to the mixture and was then extracted with EtOAc. The organic phase was dried, evaporated and used for next step without further purification.
  • To a solution of 4-(4-benzyloxycarbonyl-phenyl)-tetrahydro-pyran-4-carboxylic acid (0.3 g, 0.88 mmol) and 2-bromo-1-pyrazin-2-yl-ethanone (210 mg, 1.2 eq) in acetonitrile, TEA (0.18 mL, 1.2 eq) was added and heated in the microwave at 80° C. for 1 hour. The reaction mixture was evaporated and purified by silica gel chromatography (Hex:EtOAc 25:75). 4-(4-benzyloxycarbonyl-phenyl)-tetrahydro-pyran-4-carboxylic acid 2-oxo-2-pyrazin-2-yl-ethyl ester (0.3 g, 0.65 mmol), NH4OAc (110 mg, 2.2 eq) and 3 Å molecular sieves were mixed together in xylene and heated in the microwave at 160° C. for 1 hour. After the reaction was done, it was extracted with EtOAc and the organic phase was dried and evaporated to be used in the next step without further purifications.
  • Hydrogenation of 4-[4-(4-pyrazin-2-yl-1H-imidazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid benzyl ester (0.2 mg, 0.45 mmol) in EtOH, was carried out in the presence of excess Pd/C (10%, dry basis) at a pressure of 1 atmosphere. After 16 hours, the reaction mixture was filtered through a celite pad and washed with hot ethanol. The solution was evaporated and used for next step without further purification.
  • The above acid was then coupled with 1,2-phenylenediamine in the presence of HATU and DIPEA in DMF and purified by reverse phase chromatography to give the title compound. MS found for C25H24N6O2 as (M+H)+ 441.21 1H NMR (400 MHz, dmso-d6): 1H-NMR (DMSO) δ: 10.42 (s, 1H), 9.32 (s, 1H), 8.68-8.64 (m, 2H), 8.37 (s, 1H), 8.07 (d, J=8.4 Hz, 2H), 7.54 (d, J=8.4 Hz, 2H), 7.46-7.28 (m, 5H), 3.82-3.79 (m, 2H), 3.52-3.46 (m, 2H), 2.98-2.95 (m, 2H), 2.40-2.29 (m, 2H).
    • Example 77 N-(2-amino-phenyl)-4-[4-(4-phenyl-1H-imidazol-2-yl)-tetrahydro-pyran-4-yl]-benzamide
  • Figure US20120045412A1-20120223-C00431
    • Example 77 Compound q-04
  • Similar procedure from Example 76 was followed to obtain the title compound using 2-bromo-1-phenyl-ethanone. MS found for C27H26N4O2 as (M+H)+ 439.04 1H NMR (400 MHz, dmso-d6): 1H-NMR (DMSO) δ: 10.15 (s, 1H), 8.09 (s, 1H), 8.05 (d, J=8.4 Hz, 2H), 7.86 (d, J=7.2 Hz, 2H), 7.55 (d, J=8.4 Hz, 2H), 7.49-7.33 (m, 4H), 7.15 (d, J=6.4 Hz, 2H), 7.04 (s, 1H), 3.82-3.79 (m, 2H), 3.53-3.48 (m, 2H), 2.97-2.90 (m, 2H), 2.41-2.38 (m, 2H).
    • Example 78 N-(2-amino-phenyl)-4-[4-(1-methyl-4-pyrazin-2-yl-1H-imidazol-2-yl)-tetrahydro-pyran-4-yl]-benzamide
  • Figure US20120045412A1-20120223-C00432
    • Example 78 Compound q-02
  • 4-(4-Cyano-tetrahydro-pyran-4-yl)-benzoic acid methyl ester (1.0 g, 4.08 mmol) was suspended in 4.0N NaOH and heated at 110° C. for 1 hour. After the reaction was completed, 2N HCl was slowly added to form a precipitate. The precipitate was then filtered, dried under vacuum, and used for next step without purification.
  • 4-(4-carboxy-phenyl)-tetrahydro-pyran-4-carboxylic acid (0.4 g, 1.6 mmol) was dissolved in NMP and then HATU (1.28 g, 2.1 eq) and DIPEA (0.8 mL, 3.0 eq) were added and stirred at 50° C. for 1 hour. The reaction mixture was cooled down to room temperature and benzyl alcohol (172 mg, 1.0 eq) was added. The reaction mixture was stirred at room temperature overnight. A saturated aqueous solution of NaHCO3 was added to the mixture and was then extracted with EtOAc. The organic phase was dried, evaporated and used for next step without further purification.
  • To a solution of 4-(4-benzyloxycarbonyl-phenyl)-tetrahydro-pyran-4-carboxylic acid (0.3 g, 0.88 mmol) and 2-bromo-1-pyrazin-2-yl-ethanone (210 mg, 1.2 eq) in acetonitrile, TEA (0.18 mL, 1.2 eq) was added and heated in the microwave at 80° C. for 1 hour. The reaction mixture was evaporated and purified by silica gel chromatography (Hex:EtOAc 25:75). 4-(4-benzyloxycarbonyl-phenyl)-tetrahydro-pyran-4-carboxylic acid 2-oxo-2-pyrazin-2-yl-ethyl ester (0.3 g, 0.65 mmol), NH4OAc (110 mg, 2.2 eq) and 3 Å molecular sieves were mixed together in xylene and heated in the microwave at 160° C. for 1 hour. After the reaction was done, it was extracted with EtOAc and the organic phase was dried and evaporated to be used in the next step without further purifications.
  • 4-[4-(4-pyrazin-2-yl-1H-imidazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid benzyl ester (168 mg, 0.38 mmol) was dissolved in THF (3 mL). MeI (0.26 mL, 1.1 eq) and NaH (10 mg, 1.1 eq) were added at room temperature under vigorous stirring. After one hour, the mixture was evaporated under vacuum and then extracted in EtOAc. The organic phase was dried and evaporated to be used for next step. Hydrogenation of 4-[4-(1-methyl-4-pyrazin-2-yl-1H-imidazol-2-yl)-tetrahydro-pyran-4-yl]-benzoic acid benzyl ester (0.2 mg, 0.44 mmol) in EtOH was carried out in the presence of excess Pd/C (10%, dry basis) at a pressure of 1 atmosphere. After 16 hours, the reaction mixture was filtered through a celite pad and washed with hot ethanol. The solution was evaporated and used for next step without further purification.
  • The above acid was then coupled with 1,2-phenylenediamine in the presence of HATU and DIPEA in DMF and purified by reverse phase chromatography to give the title compound. MS found for C26H26N6O2 as (M+H)+455.08 1H NMR (400 MHz, dmso-d6): 1H-NMR (DMSO) δ: 10.44 (s, 1H), 9.14 (d, J=1.6 Hz, 1H), 8.54-8.53 (m, 1H), 8.44 (d, J=2.4 Hz, 1H), 8.05 (d, J=8.4 Hz, 2H), 7.82 (s, 1H), 7.47-7.29 (m, 6H), 3.79-3.78 (m, 4H), 3.20 (s, 3H), 2.56-2.20 (m, 4H).
    • Example 79 N-(2-amino-phenyl)-4-[4-(1-methyl-4-phenyl-1H-imidazol-2-yl)-tetrahydro-pyran-4-yl]-benzamide
  • Figure US20120045412A1-20120223-C00433
    • Example 79 Compound q-05
  • Similar procedure from Example 78 was followed to obtain the title compound using 2-bromo-1-phenyl-ethanone. MS found for C28H28N4O2 as (M+H)+ 453.17 1H NMR (400 MHz, dmso-d6): 1H-NMR (DMSO) δ: 10.49 (s, 1H), 8.11 (d, J=8.4 Hz, 2H), 7.81-7.79 (m, 3H), 7.48-7.25 (m, 9H), 3.74-3.66 (m, 4H), 3.32 (s, 3H), 2.66-2.43 (m, 4H).
    • Example 80 Biological Assays
  • HDAC inhibitory activity of the compound of Example 1 was measured by two types of assays in which HDAC 1 and 6 were used as a target molecule. The first assay was carried out without preincubation after addition of the enzyme. The test compound was suspended in and titrated in DMSO. It was then spotted into a 384-well test plate. The enzyme, HDAC 1 or 6, was diluted in assay buffer containing 25 mM Tris-HCl (pH 8.0), 137 mM NaCl, 2.7 mM KCl, and 0.01% Tween-20 and added to the pre-spotted compound. The peptide substrate containing a fluorophore/quencher pair was diluted in the same assay buffer and added to the compound/enzyme mix initiating the reaction. The reaction incubated at room temperature for about 45 minutes. A concentrated developer solution was diluted in the assay buffer, and added to the reaction. The reaction was incubated at room temperature for about 15 minutes and relative fluorescence was read on an instrument reader.
  • The second assay is similar to the first assay described above, except that preincubation is carried out for about 3 hours after the enzyme is introduced. The test compound was suspended in, and titrated in DMSO. It was then spotted into a 384-well test plate. The enzyme, HDAC 1 or 6, was diluted in the same assay buffer as used in the previous assay and added to the pre-spotted compound. The enzyme/compound mix was incubated at room temperature for about 3 hours. The peptide substrate containing a fluorophore/quencher pair was diluted in the assay buffer and added to the compound/enzyme mix initiating the reaction. The reaction incubated at room temperature for 45 minutes. A concentrated developer solution was diluted in the assay buffer, and added to the reaction. The reaction was incubated at room temperature for about 15 minutes and relative fluorescence was read on an instrument reader.
  • Table 6 shows IC50 data for the compound tested with the protocols described above.
  • TABLE 6
    IC50 of HDAC inhibitor compounds
    HDAC 1 inhibitory
    activity (IC50 [μM])
    Compound (3-hour preincubation)
    Example 1 0.0239
    Example 2 0.024
    Example 3 0.065
    Example 4 0.331
    Example 5 0.012
    Example 6 0.012
    Example 7 0.008
    Example 8 0.037
    Example 9 0.003
    Example 10 0.279
    Example 11 0.069
    Example 12 0.016
    Example 15 0.119
    Example 16 0.0988
    Example 17 0.0982287
    Example 18 0.0139298
    Example 19 0.0518244
    Example 20 0.0189882
    Example 21 0.006
    Example 22 0.014
    Example 23 0.032
    Example 24 0.013
    Example 25 0.006
    Example 26 0.017
    Example 27 0.019
    Example 28 0.0026
    Example 29 0.032
    Example 30 0.067
    Example 31 0.001
    Example 32 0.0025
    Example 33 0.0029
    Example 34 0.0066
    Example 35 0.0033
    Example 36 0.0029
    Example 37 0.00388
    Example 38 0.003112
    Example 39 0.003326
    Example 40 0.006387
    Example 41 0.0070215
    Example 42 0.0350785
    Example 43 0.3625015
    Example 44 0.0070965
    Example 45 0.0060575
    Example 46 0.007488
    Example 47 0.005758
    Example 48 0.002944
    Example 49 0.002474
    Example 50 0.002621
    Example 51 0.003895
    Example 52 0.007922
    Example 53 0.0979
    Example 54 0.00625
    Example 55 0.04445
    Example 56 0.003246
    Example 57 0.00774
    Example 58 0.020776
    Example 59 0.002309
    Example 60 0.006157
    Example 61 0.002092
    Example 62 0.00896
    Example 63 0.004277
  • The results indicate that the compounds have inhibitory activity against HDAC and thus can be useful to treat or inhibit diseases caused by abnormal activities of HDAC.
  • All patents and publications cited herein are incorporated by reference into this application in their entirety.

Claims (13)

What is claimed is:
1. A compound of Formula (I) or a pharmaceutically acceptable salt thereof:
Figure US20120045412A1-20120223-C00434
wherein
Cy1 is cycloalkylidene or heterocycloalkylidene;
Cy2 is imidazolyl, triazolyl, tetrazolyl pyridinyl or pyrimidinyl;
Ar is phenyl;
m is an integer from 0 to the maximum number of substitutable positions on Ar;
n is an integer from 0 to the maximum number of substitutable positions on Cy';
p is an integer from 0 to the maximum number of substitutable positions on Cy2;
R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH, and aryl or heteroaryl is optionally further substituted with one or more groups selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl and haloheterocyclyl, wherein alkyl, alkenyl or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl;
R2 is independently selected from the group consisting of halo, hydroxyl, oxo, nitro, cyano, trifluoromethyl, trifluoromethoxy, amino, carboxyl, carbamoyl, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2 amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2 carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, cycloalkyl, heterocyclyl and aryl;
R3 is independently selected from the group consisting of halo, hydroxyl, oxo, nitro, cyano, trifluoromethyl, trifluoromethoxy, amino, carboxyl, carbamoyl, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2 amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2 carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, cycloalkyl, heterocyclyl and aryl, wherein each R3 is optionally substituted by one or more A; or
two groups R3 are substituted on the same carbon ring atom of Cy1 and together with the carbon ring atom of Cy1 form a ring situated on Cy1 in a Spiro configuration, wherein the spiro ring is cycloalkyl or heterocycloalkyl;
R4 is independently selected from the group consisting of H, halo, nitro, cyano, hydroxyl, oxo, hydroxy(C1-10 alkyl), amino(C1-10 alkyl), haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, hydroxy(C1-10 alkoxy)(C1-10 alkoxy), (C1-10 alkoxy)(C1-10 alkoxy), (C1-10 alkoxy)(C1-10 alkyl), C1-10 alkanoyl, alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, NH2—CO—NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, aryl, arylalkyl, aryloxy, arylthio, cycloalkyl, cycloalkylalkyl, cycloalkyloxy, heterocyclyl, heterocyclylalkyl, heterocyclyl(C═O)—, heterocyclyloxy and heterocyclylthio, wherein if R4 is not aryl, cycloalkyl or heterocyclyl, each R4 is optionally substituted by one or more B, and if R4 is aryl, cycloalkyl or heterocyclyl, R4 is optionally further substituted by one or more R5, or
when p is 2 or greater, two R4 groups form a 5- or 6-membered cyclic moiety to make a fused ring with Cy2 ring, wherein the cyclic moiety can contain one or more heteroatoms selected from N, O and S and the fused ring is optionally substituted by one or more R5;
R5 is independently selected from halo, nitro, cyano, hydroxyl, oxo, hydroxy(C1-10 alkyl), amino(C1-10 alkyl), haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, hydroxy(C1-10 alkoxy)(C1-10 alkoxy), (C1-10 alkoxy)(C1-10 alkoxy), (C1-10 alkoxy)(C1-10 alkyl), C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, NH2—CO—NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, aryl, arylalkyl, aryloxy, arylthio, cycloalkyl, cycloalkylalkyl, cycloalkyloxy, heterocyclyl, heterocyclylalkyl, heterocyclyl(C═O)—, heterocyclyloxy and heterocyclylthio, wherein each R5 is optionally substituted by one or more D; and
A, B and D are independently selected from halo, nitro, cyano, hydroxyl, oxo, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, H2NS(O)2NH—, N—(C1-10 alkyl)NHS(O)2NH—, N,N—(C1-10 alkyl)2NS(O)2NH—, aryl, aryloxy, arylthio, cycloalkyl, cycloalkyloxy, heterocyclyl, heterocyclyl(C═O)—, heterocyclyloxy and heterocyclylthio.
2. The compound or pharmaceutically acceptable salt thereof of claim 1, wherein R1 is hydroxyl, phenyl or 5-membered or 6-membered heteroaryl, wherein phenyl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, and phenyl or heteroaryl is optionally further substituted with one or more substituent selected from amino, halo, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl, and haloheterocyclyl, wherein alkyl, alkenyl, or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl and cycloalkyl.
3. The compound or pharmaceutically acceptable salt thereof of claim 1, wherein Cy1 is C3-7 cycloalkylidene having from 3 to 7 ring members; and Cy2 is heterocyclyl.
4. The compound or pharmaceutically acceptable salt thereof of claim 1 selected from those of Formulae (I-c):
Figure US20120045412A1-20120223-C00435
wherein
m is 0, 1, 2, 3 or 4;
Cy1 is C3-7 cycloalkylidene;
R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, and aryl or heteroaryl is optionally further substituted with one or more substituent selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl, and haloheterocyclyl, wherein alkyl, alkenyl, or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; and
each R4 is independently selected from H, halo, nitro, cyano, hydroxyl, hydroxy(C1-10 alkyl), haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, aryl, cycloalkyl and heterocyclyl wherein if R4 is not aryl, cycloalkyl or heterocyclyl, each R4 is optionally substituted by one or more B, and if R4 is aryl, cycloalkyl or heterocyclyl, R4 is optionally further substituted by one or more R5.
5. The compound or pharmaceutically acceptable salt thereof of claim 5 which has a formula selected from the group consisting of:
Figure US20120045412A1-20120223-C00436
Figure US20120045412A1-20120223-C00437
wherein
R6′, R7′, R8, R9 and R10 are independently selected from H, halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl and N,N—(C1-10 alkyl)2sulphamoyl, wherein each R6′, R7′, R8, R9 and R10 is optionally substituted by one or more D; and
R11, R12, and R13 are independently selected from R4 optionally substituted by one or more B.
6. The compound of claim 5 which is selected from the group consisting of:
N-hydroxy-4-(1-(4-(imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-3-(1-(4-(imidazo[1,2-d]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(imidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-3-(1-(4-(imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(2-methylimidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-3-(1-(4-(2-methylimidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-3-(1-(4-(2-methylimidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
4-(1-(4-(6-chloro-2-methylimidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)-N-hydroxybenzamide;
N-(2-aminophenyl)-4-(1-(4-(6-chloro-2-methylimidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(7-methoxy-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(7-methoxy-2-methylimidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
4-(1-(4-(7-((dimethylamino)methyl)imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)-N-hydroxybenzamide;
N-(2-aminophenyl)-4-(1-(4-(7-((dimethylamino)methyl)imidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(7-(pyrrolidin-1-ylmethyl)imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyebenzamide;
N-(2-aminophenyl)-4-(1-(4-(7-(pyrrolidin-1-ylmethyl)imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(7-(morpholinomethyl)imidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(7-(morpholinomethyl)imidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(2-methyl-6-(trifluoromethyl)imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(2-methyl-6-(trifluoromethyl)imidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(2-methyl-7-(trifluoromethyl)imidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(2-methyl-7-(trifluoromethyl)imidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
3-(2-(1-(4-(hydroxycarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-N-(2-methoxyethyl)-2-methylimidazo[1,2-a]pyridine-7-carboxamide;
3-(2-(1-(4-(2-aminophenylcarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-N-(2-methoxyethyl)-2-methylimidazo[1,2-a]pyridine-7-carboxamide;
4-(1-(4-(7-cyano-2-methylimidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)-N-hydroxybenzamide;
N-(2-aminophenyl)-4-(1-(4-(7-cyano-2-methylimidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
3-(2-(1-(4-(hydroxycarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-2-methyl-N-(2-morpholinoethyl)imidazo[1,2-c]pyridine-7-carboxamide;
3-(2-(1-(4-(2-aminophenylcarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-2-methyl-N-(2-morpholinoethyl)imidazo[1,2-a]pyridine-7-carboxamide;
methyl 3-(2-(1-(4-(hydroxycarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-2-methylimidazo[1,2-c]pyridine-7-carboxylate;
methyl 3-(2-(1-(4-(2-aminophenylcarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-2-methylimidazo[1,2-a]pyridine-7-carboxylate;
N-hydroxy-4-(1-(4-(2-methyl-7-(4-methylpiperazine-1-carbonyl)imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(2-methyl-7-(4-methylpiperazine-1-carbonyl)imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyebenzamide;
3-(2-(1-(4-(hydroxycarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-2-methylimidazo[1,2-a]pyridine-7-carboxylic acid;
3-(2-(1-(4-(2-aminophenylcarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-2-methylimidazo[1,2-a]pyridine-7-carboxylic acid;
N-hydroxy-4-(1-(4-(2-methyl-7-(2-morpholinoethoxy)imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(2-methyl-7-(2-morpholinoethoxy)imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
4-(1-(4-(7-(2-(dimethylamino)ethoxy)-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)-N-hydroxybenzamide;
N-(2-aminophenyl)-4-(1-(4-(7-(2-(dimethylamino)ethoxy)-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(7-(2-methoxyethoxy)-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(7-(2-methoxyethoxy)-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
4-(1-(4-(7-(2-(dimethylamino)ethylamino)-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)-N-hydroxybenzamide;
N-(2-aminophenyl)-4-(1-(4-(7-(2-(dimethylamino)ethylamino)-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
3-(2-(1-(4-(hydroxycarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-N-(2-methoxyethyl)-2-methylimidazo[1,2-a]pyridine-6-carboxamide;
3-(2-(1-(4-(2-aminophenylcarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-N-(2-methoxyethyl)-2-methylimidazo[1,2-a]pyridine-6-carboxamide;
N-hydroxy-4-(1-(4-(2-methyl-6-(4-methylpiperazine-1-carbonyl)imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(2-methyl-6-(4-methylpiperazine-1-carbonyl)imidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
3-(2-(1-(4-(hydroxycarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-2-methyl-N-(2-morpholinoethyl)imidazo[1,2-a]pyridine-6-carboxamide;
3-(2-(1-(4-(2-aminophenylcarbamoyl)phenyl)cyclopropyl)pyrimidin-4-yl)-2-methyl-N-(2-morpholinoethyl)imidazo[1,2-a]pyridine-6-carboxamide;
N-hydroxy-4-(1-(4-(6-(2-methoxyethoxy)-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(6-(2-methoxyethoxy)-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(6-methoxy-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(6-methoxy-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
4-(1-(4-(8-fluoro-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)-N-hydroxybenzamide;
N-(2-aminophenyl)-4-(1-(4-(8-fluoro-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
4-(1-(4-(7-((dimethylamino)methyl)-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)-N-hydroxybenzamide;
N-(2-aminophenyl)-4-(1-(4-(7-((dimethylamino)methyl)-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
4-(1-(4-(6-bromo-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)-N-hydroxybenzamide;
N-(2-aminophenyl)-4-(1-(4-(6-bromo-2-methylimidazo[1,2-a]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(7-methoxy-2-(trifluoromethyl)imidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(7-methoxy-2-(trifluoromethyl)imidazo[1,2-c]pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide; and
pharmaceutically acceptable salts thereof.
7. The compound or pharmaceutically acceptable salt thereof of claim 5 which has a formula selected from the group consisting of:
Figure US20120045412A1-20120223-C00438
wherein R6′, R7′, R8, R9 and R10 are independently selected from H, halo, nitro, cyano, hydroxyl, hydroxyalkyl, haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl and N,N—(C1-10 alkyl)2sulphamoyl, wherein each R6, R7, R8, R9 and R10 is optionally substituted by one or more D.
8. The compound of claim 7 which is selected from the group consisting of:
N-hydroxy-4-(1-(4-(1-isopropyl-2-methylimidazol-5-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(1-isopropyl-2-methylimidazol-5-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(4-isopropyl-5-methyl-1,2,4-triazol-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(4-isopropyl-5-methyl-1,2,4-triazol-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(pyridin-3-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(pyridin-4-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(pyridin-4-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-hydroxy-4-(1-(4-(pyridin-2-yl)pyrimidin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(1-(4-(pyridin-2-yl)pyrimidin-2-yl)cyclopropyl)benzamide; and
pharmaceutically acceptable salts thereof.
9. The compound or pharmaceutically acceptable salt thereof of claim 1 selected from those of Formulae (I-f), (I-g), (I-q), and (I-r), and pharmaceutically acceptable salts thereof:
Figure US20120045412A1-20120223-C00439
wherein
m is 0, 1, 2, 3 or 4;
Cy1 is C3-7 cycloalkylidene or heterocycloalkylidene;
R1 is hydroxyl, aryl or heteroaryl, wherein aryl or heteroaryl is substituted with —NH2 or —OH at a ring position adjacent to attachment of the —CONH-moiety, and aryl or heteroaryl is optionally further substituted with one or more substituent selected from amino, halo, cyano, alkyl, alkenyl, alkynyl, haloalkyl, cycloalkyl, heterocyclyl, aryl, haloaryl, and haloheterocyclyl, wherein alkyl, alkenyl, or alkynyl is optionally further substituted with one or more groups selected from halo, hydroxyl, alkyl, haloalkyl, cycloalkyl, halophenyl, heterocyclyl, and trialkylsilyl; and
each R4 is independently selected from H, halo, nitro, cyano, hydroxyl, hydroxy(C1-10 alkyl), haloalkyl, haloalkoxy, amino, azido, carboxyl, carbamoyl, mercapto, sulphamoyl, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, C1-10 alkoxy, C1-10 alkanoyl, C1-10 alkanoyloxy, N—(C1-10 alkyl)amino, N,N—(C1-10 alkyl)2amino, C1-10 alkanoylamino, N—(C1-10 alkyl)carbamoyl, N,N—(C1-10 alkyl)2carbamoyl, C1-10 alkyl-S(O)a wherein a is 0, 1 or 2, C1-10 alkoxycarbonyl, NH2—S(O)2NH—, N—(C1-10 alkyl)sulphamoyl, N,N—(C1-10 alkyl)2sulphamoyl, aryl, cycloalkyl and heterocyclyl, wherein if R4 is not aryl, cycloalkyl or heterocyclyl, each R4 is optionally substituted by one or more B, and if R4 is aryl, cycloalkyl or heterocyclyl, R4 is optionally further substituted by one or more R5.
10. The compound of claim 9 which is selected from the group consisting of:
N-(2-aminophenyl)-4-(1-(pyridin-2-yl)cyclopropyl)benzamide;
N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(1-(pyridin-2-yl)cyclopropyl)benzamide;
N-(2-amino-5-(5-chlorothiophen-2-yl)phenyl)-4-(1-(pyridin-2-yl)cyclopropyl)benzamide;
N-(2-aminophenyl)-4-(4-(pyridin-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(pyridin-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(2-amino-5-(5-chlorothiophen-2-yl)phenyl)-4-(4-(pyridin-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(2-aminophenyl)-4-(4-(4,6-bis(2-hydroxypropan-2-yl)pyridin-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(4,6-bis(2-hydroxypropan-2-yl)pyridin-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(2-amino-5-(5-chlorothiophen-2-yl)phenyl)-4-(4-(4,6-bis(2-hydroxypropan-2-yl)pyridin-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(2-aminophenyl)-4-(4-(2,3-dihydropyridin-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(2,3-dihydropyridin-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(2-amino-5-(thiophen-2-yl)phenyl)-4-(4-(2,3-dihydropyridin-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
4-(4-(1H-tetrazol-5-yl)tetrahydro-2H-pyran-4-yl)-N-(2-aminophenyl)benzamide;
4-(4-(1H-tetrazol-5-yl)tetrahydro-2H-pyran-4-yl)-N-(4-amino-4′-fluorobiphenyl-3-yl)benzamide;
4-(4-(1H-tetrazol-5-yl)tetrahydro-2H-pyran-4-yl)-N-(2-amino-5-(thiophen-2-yl)phenyl)benzamide;
N-(2-aminophenyl)-4-(4-(4-(pyrazin-2-yl)-1H-imidazol-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(2-aminophenyl)-4-(4-(1-methyl-4-(pyrazin-2-yl)-1H-imidazol-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(1-methyl-4-(pyrazin-2-yl)-1H-imidazol-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(2-aminophenyl)-4-(4-(4-phenyl-1H-imidazol-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(2-aminophenyl)-4-(4-(1-methyl-4-phenyl-1H-imidazol-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(1-methyl-4-phenyl-1H-imidazol-2-yl)tetrahydro-2H-pyran-4-yl)benzamide;
2-aminophenyl 4-(4-(3-methyl-1H-1,2,4-triazol-5-yl)tetrahydro-2H-pyran-4-yl)benzoate;
4-amino-4′-fluorobiphenyl-3-yl 4-(4-(3-methyl-1H-1,2,4-triazol-5-yl)tetrahydro-2H-pyran-4-yl)benzoate;
2-amino-5-(5-chlorothiophen-2-yl)phenyl 4-(4-(3-methyl-1H-1,2,4-triazol-5-yl)tetrahydro-2H-pyran-4-yl)benzoate, and pharmaceutically acceptable salts thereof.
11. A pharmaceutical composition comprising an effective amount of one or more compounds according to claim 1 and a pharmaceutically-acceptable carrier.
12. The pharmaceutical composition according to claim 11, further comprising one or more anti-cancer agents selected from the group consisting of cyclophosphamide, dacarbazine, cisplatin, methotrexate, mercaptopurine, thioguanine, fluorouracil, cytarabine, vinblastine, paclitaxel, doxorubicin, bleomycin, mitomycin, prednisone, tamoxifen, flutamide, asparaginase, rituximab, trastuzumab, imatinib, retinoic acid, colony-stimulating factor, amifostine, lenalidomide, HDAC inhibitor, CDK inhibitor, camptothecin and topotecan.
14. The compound of claim 9 selected from the group consisting of:
N-(4-amino-4′-fluorobiphenyl-3-yl)-4-(4-(pyridin-2-yl)tetrahydropyran-4-yl)benzamide;
4-[4-(5-methyl-2H-[1,2,4]triazol-3-yl)-tetrahydro-pyran-4-yl]-benzoic acid 4-amino-4′-fluoro-biphenyl-3-yl ester;
4-[1-(5-acetyl-4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-yl)-cyclopropyl]-N-(2-amino-phenyl)-benzamide; or pharmaceutically acceptable salt thereof.
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